Recycled refrigerators that were used as a canvas for a painter, massive displays of furniture, inflatable balloons for retailers to promote their stores, 3-D TVs from Mitsubishi, mattresses by Serta, Toshiba’s new XDE DVD player, and Emmy-winning ESPN and now HD Net sports interviewer Roy Firestone, who has become a singer, impressionist, author and inspirational speaker, were just some of the unique sights and sounds, during this year’s Nationwide Marketing Group PrimeTime! show at the Mandalay Bay Resort. You really haven’t lived until you’ve seen Firestone do his Sammy Davis Jr. impression singing “Candy Man.” I think. As the saying goes, “Only in Vegas.”