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we have lots of decentralized exchanges: uniswap, paraswap, dydx, loopring, etc....

not sure why more people dont use them, perhaps fooled by the convenience/ marketing/ promotional lures of CEXs.

Fees are generally much lower when trading on a CEX, especially with small amounts.

I guess that makes sense given that the CEX can simply update values in their own (non-blockchain) database. This highlights that blockchain tech isn't really ready for prime-time use, yet. If the cost / tx could be brought down significantly, then there would be no need for a CEX.

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