I recently lived in North Carolina, where all liquor must be purchased at a state "ABC" store. It was also somewhat difficult to find a nice selection of craft beers. It is very refreshing to be able to walk into one store and find whatever you are looking for. Enormous selection of fermented delights. Cold beer, a brand of tequila you've never seen before, mixers, bar tools, whatever. This place is friggin' huge! And prices are pretty good too, especially on the liquor aisles.
It should be on a list somewhere of places to visit when you come to Las Vegas.
Although there aren't a bunch of extra employees around to greet you and answer every little question, I think it's safe to say most folks generally know what they're after when they walk into a liquor store. Great place for connoisseurs and folks that like to experiment with different brands. Mr. Lee, keep on keepin' on!