Question: What caused members of Alfred Shaker Historic District move to Sabbathday Lake Shaker Village?

Context paragraphs:
Alfred, Maine: Alfred is a town in York County, Maine, in the United States.  As of the 2010 census, the town population was 3,019.  Alfred is the county seat of York County and home to part of the Massabesic Experimental Forest.  National Register of Historic Places has two listings in the town, the Alfred Historic District, with 48 houses, and the Alfred Shaker Historic District.

New Gloucester, Maine: New Gloucester is a town in Cumberland County, Maine, in the United States.  It is home to the Sabbathday Lake Shaker Village, the last active Shaker village in the U.S.  The town's population was 5,542 at the 2010 census.

Mildred Barker: Ruth Mildred Barker (February 3, 1897 – January 25, 1990) was a musician, scholar, manager, and spiritual leader from the Alfred and Sabbathday Lake Shaker villages.  A prominent and respected Shaker during her long life, she is known primarily for her effort in preserving Shaker music.  With the help of Daniel Patterson, she recorded "Early Shaker Spirituals", a collection of Shaker songs.  In recognition of her achievements in the field, in 1983 she received the National Heritage Fellowship.  She also is known for co-founding and managing "The Shaker Quarterly", a magazine and journal focused on the Shakers, and to which she was a regular contributor.

The Shaker Quarterly: The Shaker Quarterly was a periodical published by the Sabbathday Lake Shaker Village from 1961 to 1996.  It served as a journal and newsletter about the Shakers, and at times also doubled as a mail order catalog advertising products created by the Shaker community at Sabbathday Lake.  It was the first regular Shaker publication since the "Manifesto" ceased publication in 1899.

Shaker communities: After the Shakers arrived in the United States in 1774, they established numerous communities in the late-18th century through the entire 19th century.  The first villages organized in Upstate New York and the New England states, and, through Shaker missionary efforts, Shaker communities appeared in the Midwestern states.  Communities of Shakers were governed by area bishoprics and within the communities individuals were grouped into "family" units and worked together to manage daily activities.  By 1836 eighteen major, long-term societies were founded, comprising some sixty families, and many smaller, short-lived communities were established over the course of the 19th century, including two failed ventures into the Southeastern United States and an urban community in Philadelphia, Pennsylvania.  The Shakers peaked in population by the early 1850s.  With the turmoil of the American Civil War and subsequent Industrial Revolution, Shakerism went into severe decline, and as the number of living Shakers diminished, Shaker villages ceased to exist.  Some of their buildings and sites have become museums, and many are historic districts under the National Register of Historic Places.  The only active community is Sabbathday Lake Shaker Village in Maine.

Sabbathday Lake Shaker Village: Sabbathday Lake Shaker Village is a Shaker village near New Gloucester and Poland, Maine, in the United States.  It is the last active Shaker community, with only two members as of 2017.  The community was established in either 1782, 1783 or 1793, at the height of the Shaker movement in the United States.  The Sabbathday Lake meetinghouse was built in 1794.  The entire property was declared a National Historic Landmark in 1974.

Louis St. Gaudens House and Studio: The Louis St. Gaudens House and Studio is a historic house at Dingleton Hill and Whitten Roads in Cornish, New Hampshire.  The 2-1/2 story gambrel-roofed wood frame structure was designed by Moses Johnson and built in 1793-94 at the Shaker village in Enfield, New Hampshire.  At that site the building served as the main meeting space for the Shakers, with a main meeting space on the ground floor, offices on the second floor, and guest living quarters in the attic space.  The building is similar in construction to buildings designed by Johnson for the Shaker villages in Canterbury, New Hampshire and Sabbathday Lake, Maine.

The Shakers (documentary): "The Shakers" opens with the Narrator, Tom Davenport, reading a quote Benson John Lossing from an 1857 edition of Harper's New Monthly Magazine, speaking of the order, neatness, and beauty of a Shaker community.  "Simple Gifts" is sung by several Shaker women while the camera pans over Sabbathday Lake Shaker Village.  Shots of Shaker sisters sweeping, cooking, filling bird feeders, and washing clothes are shown, with numerous cuts to show historical images of the Shakers accompanied by the Narrator discussing their growth and decline.

Alfred Shaker Historic District: Alfred Shaker Historic District is a historic district in Alfred, Maine, with properties on both sides of Shaker Hill Road.  The area had its first Shaker "believers" in 1783 following visiting with Mother Ann Lee and became an official community starting in 1793 when a meetinghouse was built.  It was home to Maine's oldest and largest Shaker community.  Two notable events were the songwriting of Joseph Brackett, including "Simple Gifts", and the spiritual healing of the sick by the Shakers.  When the Alfred Shakers products and goods were no longer competitive with mass-produced products and the membership had dwindled significantly, the village was closed in 1931 and members moved to Sabbathday Lake Shaker Village, also in Maine.

Shaker Village Work Group: The Shaker Village Work Group was a recreational summer camp and teen educational program that occupied historic Shaker land and buildings in New Lebanon, New York.  The property was purchased by founders Jerome (Jerry) and Sybil A. Count from the Mount Lebanon Shaker Village community in 1946, and was opened to its first group of young "villagers" as the Shaker Village Work Camp in 1947.  Around 1960, the Work Camp's name was changed to the Shaker Village Work Group.  Operating until 1973, the Shaker Village Work Group was noteworthy as a program that gave urban youths the opportunity to learn skilled hands-on work through folk crafts, for its efforts to preserve Shaker architecture and culture, for its role in the American folk music revival of the 1950s and 60s, and for its influence on the 1960s counterculture movement.

Supporting paragraphs: Alfred Shaker Historic District Sabbathday Lake Shaker Village
Answer: Alfred Shakers products and goods were no longer competitive