Nowadays, to be successfull in PoW mining you have to be priviliged in several ways:
- have access to 'free' (usually means stolen) energy
- live in a country with low-taxed offshore deliveries or got ASIC manufacturer in your neighbourhood
- win in 'pre-order' gambling game
To get in PoS minting you just have to purchase BTC. Of course you have to deal with market swings, but nobody says that crypto-business is risk-free.
Early adopters of PoS cryptos had their chance to dump their coins when price went up for the first period of time, or patiently wait and risk. It's the same as dealing with any other algo new released currencies.
So IMO this is the point:
The only reason why someone prefers POW is that he bought expensive mining hardware and his ROI is dropping to nowhere.