Is Polymarket better than crypto casinos?

It depends on your skill level. Polymarket can offer positive expected value if you have a genuine information edge, but 87% of wallets lose money. Crypto casino games like crash (1% house edge) and blackjack (0.5% house edge) have fixed, transparent costs that are lower per bet than the typical Polymarket spread on thin markets. If you do not have domain expertise to beat other traders, a provably fair casino game with a known edge is more transparent.