You can only buy into a IPO for a limited amount of time with PoS.

With PoW, you can mine for decades to come.


PoS has horrible, unfair distribution and it will always be that way, simply because PEOPLE(the devs) choose who gets what amount of coins. You have to rely on them, with PoW, you don't have to trust anyone, you can go buy a mining rig and get your own damn coins.

100% PoS will always be shit and never go anywhere.

HOWEVER.

PoW transitioning to PoS over time is the best method, it's better than 100% PoW and way better than 100% PoS.