Not even faucet owners make big profits. There are faucet owners around complaining that they can't get much with them and shutting them down. Only the big ones give reasonable returns.
If it is just to know how things works I think others coins like Doge are better because takes less time to get some transferable amount and all works more or less like BTC
but then the question is, why at all people are running faucets, if no one, neither clients nor people who run it, find it profitable. I understand that having really many referrers you may in the end earn some pennies, but still there are much better ways to spend your time and earn much better, e.g., mini jobs, signature campaigns and many more.