Casino faucets are more important for those who do not have much money and they can use this faucet money to gamble and increase it over time.
Though for most people faucets seems useless but for some, it may be everything. Though i think that faucets do not give much money, but i think betfury and other gambling sites should have faucets, as it is a good marketing tool also.
I think the golden age for faucets is already a long time ago, but it can be interesting for some players and it can add up if you are able to claim it several times a day for a long period in a row. You can use the faucet money to trial out games, but a lot of sites also have like house coins (without any value - like Funfury for Betfury) that can be used to trial games.