I agree as I have not seen anyone here promoting his fiat gambling sites, maybe some of us have tried fiat gambling but I'm pretty sure we share that same experience telling that crypto gambling is better than fiat gambling.
It all depends just a case say I play with btc and lost in gambling worth 0.1 and today it may be worth around 820$ and say in future btc rises to 1200$ for 0.1 then you lose this opportunity as well of making money . So should be clever to use it .