just spent the weekend at the Rio sportsbook for March Madness and as long as youre watching the games in the sportsbook u dont need any drink tickets . the cocktail waitresses come around very often just make sure u tip at least a buck for ur drink and she'll be coming before u finish ur 1st beer. apparently this is the norm at Rio as my buddies have been going there for years now because of the drink situation. just a little info for future visits to LV