Two different piles of risk. Fiat betting risks your money to the operator's payment processor. Crypto betting risks your money to the market itself, on top of the operator. Pick your poison.
Deposits and withdrawals settle in minutes instead of days, there's no card processor holding your funds hostage, and most crypto-first books offer either reduced juice or rakeback because their overhead is lower without payment processing fees eating the margin.
Volatility is real. Deposit $500 in a volatile coin and your bankroll can move before you've placed a bet. Most operators on this list also offer stablecoin deposits specifically to sidestep this, which is worth using if you don't want your bankroll doing its own betting on your behalf.
Fiat books in regulated markets answer to a gambling commission with real enforcement teeth. Crypto books mostly answer to Curacao or Anjouan, jurisdictions with a lighter regulatory footprint. See our Curacao licence guide for what that actually means for you if something goes wrong.
Use stablecoins if you're betting crypto and you care about your bankroll matching your intended stake, not the market's mood that day.
BADASS