I threw some sickening parties last year around this time. The last one went through 6 kegs and about 30 bottles of liquor between 9 and 1:30 or so. I charged $5 to get in and $1 you call its from the bar. Cost me like $900 and I had $1600 at the end of the night. I even built a stage in one corner and had my friend's band play. We estimated around 350 people at this one.

The one before that was 5 kegs, about 20 bottles of liquor, and the same $5 and $1 you call its. That time I booked 4 bands, all from out of town except my band. There were probably 360 people in my house by the time the second band was playing. I ended up with $1200 at the end of that one.

BUT planning and preparing my house for those parties took a huge chunk of my time and caused me to not go to class so I got suspended for a year. I think it was probably worth it though.

EDIT: I lived in an 8 bedroom house that was an old frat house, with a huge brick bar in the basement.