Bottle service is popular (well not as popular as it was in the boom years) in clubs in places like NYC, LA, Las Vegas because it allows you to get a place to sit at the club usually in a semi-private area and get waitress service. However, it is expensive. Very expensive. There are no bottles of beer, but instead bottles of champagne or liquor - exactly what you would buy at a liquor store. However, instead of paying something like $50 for a liter of grey goose, you will pay something close to $300. Yes, $300. Then add sales tax and a *mandatory* 20% tip on it and you're looking to pay close to $400 for a bottle of liquor. Multiply that by the two bottle-minimum you are likely to have to abide by, and you're close to $1000 for 2 bottles of liquor for about 4 or 5 people. If you have a larger group, you will have to buy more bottles. Told ya, it gets expensive.

So...who does it? Large groups of guys who, by themselves would not get into clubs due to their "undesirable ratio" (read: not enough girls) or people who don't care how much money they spend on a night out as long as it gets them attention and hot girls.