The fee is for the entire team, but they generally divide it up between every one on the roster.
Your amount of paint really depends on if you make it past prelims, semis, etc. I played a tournament Saturday, and we shot 15 cases, cause we went all the way to finals.
For team paint, for some players its cheaper, (back players shoot more paint) and for some, It's a bit more expensive (front players, who shoot less paint.) but, all in all, it's only fair. I'm a front guy, and I don't mind team paint, because I shouldn't only buy 2-3 cases while my back player buys 6.
Hope this helps.