why do platforms like Solana have their own casinos now

Been noticing a ton of these new blockchain-specific casinos popping up and Solana seems to be all over it. Every other day there’s some “exclusive” new table game or promo for using their token. Feels like they’re trying to pull folks away from the usual spots by hyping up fast transactions and wild bonuses, but is it just another way to lock people into their network? I get why platforms might want that steady flow of users, but I’m not sure if it actually adds much to the gambling side except for some slicker payment processing. Curious what everyone thinks about this new trend.