In January 2009, Brooks made another one of few public appearances since his retirement, performing at the We Are One: The Obama Inaugural Celebration at the Lincoln Memorial concert in Washington, D.C.. In his three-song set, Brooks performed "We Shall Be Free", along with covers of Don McLean's "American Pie" and the Isley Brothers' "Shout". On October 15, 2009, Brooks suspended his retirement to begin Garth at Wynn, a series of periodic weekend residency shows at Encore Las Vegas on the Las Vegas Strip. The schedule allowed Brooks both to have the family life during the week and to continue to perform on the weekend. The financial terms of the agreement were not announced, but Steve Wynn did disclose that he gave Brooks access to a private jet to quickly transport him between Las Vegas and his home in Oklahoma. Brooks' first weekend on shows in Vegas received positive reviews and was called the "antithesis of Vegas glitz and of the country singer's arena and stadium extravaganzas" by USA Today. The shows featured Brooks performing solo, acoustic concerts, and included a set list of songs that have influenced him. Artists covered in the show include Simon and Garfunkel, Bob Seger, Billy Joel, and Don McLean. His first performances at Encore Las Vegas coincided with his wedding anniversary, and his wife Trisha Yearwood joined him for two songs. In 2013, influenced by the set list of the Las Vegas shows, Brooks released Blame It All on My Roots: Five Decades of Influences via Walmart, a compilation album consisting of songs Brooks attributes to the development of his unique country pop genre. The box set's albums were individually certified Platinum and the compilation received a Billboard Music Award nomination. In an December 2013 appearance on Good Morning America to promote the album, Brooks also surprisingly announced plans for a world tour, beginning in 2014.

Answer this question "Why did Garth Brooks move to Las Vegas?" by extracting the answer from the text above.
On October 15, 2009, Brooks suspended his retirement to begin Garth at Wynn,