I'm a faucet owner and i do not very know how much I earn...
My luck is that I give only 1 satoshi per claim.
So by principle My faucet will certainly not dry quickly (lol)
So I can surf with the Bonuses.
1 satoshi per claim?
I hope that is a typo! Who would visit a faucet that is for only 1 satoshi?
As for the OP if you do it right, it is profitable. You have to balance your rewards vs your ad earnings. You need to be different as well, just throwing the basic faucetbox script up on some site will not drive any decent traffic. It's tricky though because if you're rewards are too low you won't receive visitors, thus causing you to earn even less revenue.