The main difference is that the top miners don’t stay the top miners. There is constant churn. The top stakers remain the top stakers at virtually no cost, and

The main difference is that the top miners don’t stay the top miners. There is constant churn. The top stakers remain the top stakers at virtually no cost, and they will almost always be custodians/financial institutions. Additionally mining isn’t always profitable. There is financial risk and miners can go bust and take financial risk. Staking is basically always profitable if you don’t misbehave.