True, but you have to consider your own outgoings from your own 50% as well.
Renderosity doesn't get 50%, but neither does the vendor after their own costs.

I'm glad you mentioned it actually, because for some reason I though they get 27% although I don't know where I might be mistaking that for.  But if it makes others money and they're happy to settle for that, well, that's ok for them then.  I would never settler for that percentage though, I'd want around 65-75%.

Basically, I wouldn't want others to earn more money from my work that I would.