Question: Amusement Expo is an annual convention featuring and showcasing vendors, developers and businesses having to do with coin activated amusements such as video arcade machines, electro-mechanical games, ticket/redemption skill and chance games, and jukeboxes, the show is held annually in March at the Las Vegas Convention Center, is owned and operated by the Las Vegas Convention and Visitors Authority in Winchester, which state?

Context paragraphs:
Las Vegas Convention Center: The Las Vegas Convention Center (commonly referred to as LVCC) is owned and operated by the Las Vegas Convention and Visitors Authority in Winchester, Nevada.

Riviera (hotel and casino): Riviera (colloquially, "the Riv") was a hotel and casino on the Las Vegas Strip in Winchester, Nevada, which operated from April 1955 to May 2015.  It was last owned by the Las Vegas Convention and Visitors Authority, which decided to demolish it to make way for the Las Vegas Global Business District.

Cashman Center: The Cashman Center or the Cashman Field Center is a 483000 sqft complex on a 55 acre site in Las Vegas, Nevada.  Operated by the Las Vegas Convention and Visitors Authority it includes Cashman Field and a 98100 sqft convention center.  The center is mostly used for locals events, but does host national events like the second and the 2008-09 United States Bowling Congress Open Championships.

Japan Amusement Expo: The Japan Amusement Expo (JAEPO) is an annual trade fair for amusement arcade products, such as arcade games, redemption games, amusement rides, vending machines, and change machines.  The event is hosted one weekend per year in the Greater Tokyo Area.  The event is held at the Makuhari Messe convention center in Chiba.

Convention Center station (Las Vegas Monorail): Convention Center station is a station on the Las Vegas Monorail.  The station is an island platform located at the Las Vegas Convention Center.  The Las Vegas Convention Center Station is located just east of the intersection of Paradise Road and Desert Inn Road.  The station is reached from the convention center's parking lot.

Amusement Expo: Amusement Expo is an annual convention featuring and showcasing vendors, developers and businesses having to do with coin activated amusements such as video arcade machines, electro-mechanical games, ticket/redemption skill and chance games, and jukeboxes.  The show is held annually in March at the Las Vegas Convention Center.

Las Vegas Convention and Visitors Authority: The Las Vegas Convention and Visitors Authority (LVCVA) is the official destination marketing organization for Southern Nevada.  The LVCVA is a public-private partnership that owns and operates the Las Vegas Convention Center (LVCC), Cashman Center, and Cashman Field and is responsible for the advertising campaigns for the Clark County, Nevada, area.

Amusement arcade: An amusement arcade (often referred to as "video arcade" or simply "arcade") is a venue where people play arcade games such as video games, pinball machines, electro-mechanical games, redemption games, merchandisers (such as claw cranes), or coin-operated billiards or air hockey tables.  In some countries, some types of arcades are also legally permitted to provide gambling machines such as slot machines or "pachinko" machines.  Games are usually housed in cabinets.  The term used for ancestors of these venues in the beginning of 20th century was penny arcades.

Las Vegas Uncork'd: Las Vegas Uncork'd (also referred to as Vegas Uncork'd and Vegas Uncorked) is an annual culinary and wine event in Las Vegas, Nevada.  The concept was developed by the Las Vegas Convention and Visitors Authority, their advertising agency R&R Partners and Las Vegas resort partners who originally considered a number of magazine partners such as Bon Appetit, Food & Wine and Gourmet.  Bon Appetit was selected as the magazine partner after a review with each magazine.  The event was launched in 2007 by the Las Vegas Convention and Visitors Authority, "Bon Appétit" magazine led by Editor-in-Chief Barbara Fairchild and co-creator and Executive Director Rob O'Keefe who led the first five years of development of what Eater.com called "the world's most innovative culinary event".  Las Vegas resort partners over the years include Bellagio, Caesars Palace and Wynn Las Vegas, MGM Grand, Mandalay Bay, The Venetian, Las Vegas and The Palazzo and each year the event features more than 80 celebrated chefs and over 25 events occurring over a spectacular four-day weekend.

Cashman Field: Cashman Field is a mixed-use stadium in Las Vegas, Nevada owned and operated by the Las Vegas Convention and Visitors Authority.  Its primary use is for baseball and soccer as the home field of the Las Vegas 51s Triple-A minor league baseball team, an affiliate of the New York Mets and the Las Vegas Lights FC.

Supporting paragraphs: Amusement Expo Las Vegas Convention Center
Answer: Nevada