Yes. If you use the right methods, then you may be able to earn a lot more in (advertisement) revenues when compared to the expenses. Keep in mind that you need to set a slightly harder threshold. If your faucet is giving 0.001 mBTC at a time, then make the threshold 0.1 mBTC. The user needs to visit the site 100 times, before he can withdraw the payment. Only a very few are going to have that much patience.
The idea is good but if people have no such patience who will watch your ads? Your crane will just be ignored. Now even the number of cranes decreased because bitcoin is very low cost and there are many sites in traditional currencies where the pay is higher.