The fact that most users choose to use centralised exchanges over on-chain transactions suggests the advantages of decentralisation do not outweigh the costs in the opinion of a great majority.
We started having decent decentralized exchanges fairly recently and there have already been days where they have processed more volume than centralized ones.
It takes time to build/deploy/grow these exchanges (since they are essentially a 2 sided marketplace).
It takes time to build/deploy/grow these exchanges (since they are essentially a 2 sided marketplace).