Our venue told us to plan for 1 keg per hundred. Whatever number we give them, they have one "on reserve." So, we were thinking 2 kegs, plus on "on reserve" for 200 people. I was talking with some friends the other night, and they laughed. One friend said his nephew went through 4 kegs in like 5 hours. Someone else told me they went through 4 1/2 kegs in the same amount of time, and someone else said they went through 7 (WHAT?!) A girl at work said they had 30 people, 1 keg, and ended up running out of beer.
I should also mention that we aren't having a fully open bar (I know...but, it is the norm around here). Alcohol wise, we're providing keg beer, and 1 batch of margaritas in marg machine.
I know it depends on number of people, and what kind of drinkers they are, but what did you guys do/what are you doing? My mom's side of the family drinks (but there aren't many of them), FH's side is kind of mixed, and that side of the family is HUGE, and then our friends are drinkers