Today, I've had some free time to check out these faucets that are, in a quite large number, available today. From what I've seen, they can payoff if you're persistent, strong willed, having a lot of free time on your hands, having much referrals or possibly owning one.
Faucets, that I've tried, were -type in captcha and collect- kind of thing and there is an average of 60min cooldown. Therefore you can make some profit on the long, long runs, which i think isn't really that good of a thing, leaving only services and signature campaigns as a only profitable option.
I do believe in faucetes as a long term investment.