I’m going to hold off a good while for a number of reasons.
Money- I’d like to wait till the price goes down a bit. Plus I still have a 1080p TV and I’d just assume buy a 4K TV first.
Games – I’m not interested in any of the games at the moment so why rush.
Quality – Let them iron out the bugs a bit.
Status Quo – I still don’t have some games I want on the PS4 so I still have PS4 games to explore.