stay away from free rolls. You're better off working one extra hour a week (or buying one less beer, or skipping a bag of chips or something) and investing the $5-10 or whatever you make after taxes into your poker fund. I would be surprised if the expected $/hr was over 0.01.

I would have to think < $1 MTTs are about the same way.

I deposited $25 on stars and played the $1-45man. By the final table people are WTF bad.