I've always loved this place!! One of the best, if not THE best, places to buy games in Vegas! The owners (Doug and Nicole I think are their names) are both super nice and friendly. Prices are arguably the best in town, and they have a great variety of older and newer games.
It is a little tricky to find, especially at night, but it's sort of tucked into a dark corner in the middle of a plaza near Sunset/Valle Verde, and it doesn't help the place doesn't have a store sign with backlight.
Other than that, I couldn't possibly say anything negative to say about this wonderful place! Five stars all the way!