Crypto casinos let you use digital currencies like Bitcoin, putting you in...

https://post-wiki.win/index.php/Why_Is_My_Casino_Deposit_Instant_but_My_Withdrawal_Takes_Longer%3F

Crypto casinos let you use digital currencies like Bitcoin, putting you in charge of your wallet and private keys. Traditional online casinos use regular money, so your £20 stays £20 without crypto price changes