twice a year our student union does a cocktail party. we pay a set price (usually very cheap) and get 3 free cocktails included. after that you pay for them, but they're still VERY cheap.
Personally, i enjoy cocktails, but that's because of my work in the hospitality industry. I'm a bartender too, and i'm forever trying out new concoctions or getting new demands from customers. Luckily, it's the policy at my workplace to have a very small taste of every drink you send out, to ensure quality and consistency. Lucky me!