It is going to take a long time to collect 0.0001 BTC, just for the site to take it back as a withdrawal fee.
That's a lot!
I don't think it is fair to be honest, what do you think?
I know that Faucets and Ad Surf sites give a small amount. But taking a withdrawal fee of 0.0001BTC is not fair. Taking highest fee for withdrawal is worst case. So, try to avoid those sites and go for better ones. Some of the faucets will pay you weekly without no fee. Try to find out those.