I have no idea what the roi of a average pro is, but if you can achieve a roi of 20% (very few can do this at a $30 buy inn), you would on average win $6 every time you play. To get to $ 100 you would need to play a average of 16,66 games a day. I would like to add that variance in these games are pretty big.
If you ask because this is a "go pro plan" I think you would have a lot of trouble getting enough games. I regulary look for stt in the $20 - $50 range, and I never finds any games running on either stars, party or 888. This is usually around 11 pm. cet fridays (give or take a few hours, depends on when I bust from turnys), which should be prime time? There is a slight chance that I have filterd out 6 man, but full ring "never" runs on these stakes.
My 2 cents
Sprockett