Just stayed in Amsterdam for two nights. We stayed just to take a look at the city, with a few bars thrown in at the end of the evening. I last stayed in Amsterdam, approx 23 years ago, in my teens. Although we had a great time, I cannot believe the cost of drinking in the city. Compared to the uk, which I think is becoming expensive, the cost of a night out drinking in Amsterdam is extortionate. The cheapest bar we found charged approx 12 euro's for two pints, another charged 16 euro's. Don't get me wrong, Amsterdam is a great city and a real eye opener, with plenty to see and do.
Tip for stag and hen parties. Calculate how much a weekend of drinking costs you in the UK and double it, and then maybe add a little more.