In some cryptocurrencies that is certainly the case. If you look at the ETH ecosystem, it is massively concentrated and thus will never be decentralized in any

In some cryptocurrencies that is certainly the case. If you look at the ETH ecosystem, it is massively concentrated and thus will never be decentralized in any meaningful way. With POW, anyone could participate, with POS most people will never have any ability to realistically participate. Just to clarify a bit in an edit here -- As a general comment about POS vx POW, you have to purchase a huge amount of the cryptocurrency to participate in POS in a meaningful way -- so there is a cost to that just as there is in mining. The recurring costs of electricity are not there in POS of course.