there are gambling casino that increase your rewards in faucet depend on the wager youhave in your account. that's the reasons why many people like it, but not all since more of them is only give small amount of free coins in faucet and chance that you can win using that amount is too low its better to use your own money than rely on free faucet.
Even if we can increase our rewards in the faucet, that doesn't mean our chance to win will be bigger. The more rewards might comes again to that casino as the casino gives them a chance to get a free coin from the faucet. And many of them are finally lose it back in the gambling table, so the casino surely get more profit from that.
If you somehow use your own money, you need to know how much money you need to gamble, and don't forget about limitations because that will be the important thing you should do before you play gambling. Otherwise, you will lose all of your money if you don't have a limitation on gambling.