You can buy a Playstation 4 PRO. It plays 4K blu-rays as well as games.I want to get a 4K television also but then one must get a 4K blueray player to go along with it......... It gets pricey keeping up with the Joneses.
The games look amazing, even when you don't have a 4K tv. I can't use it now because of the HDCP problem, but even on a HD Ready tv it's just fantastic. I was blown away by it. I was not so sure if I wanted to keep on gaming, because I felt I sort of had played all the kinds of games I wanted to play and there was not much new. But the difference in image makes the games so much better looking, that it's a whole new world. I've played the last Tomb Raider and Uncharted and both felt bigger than any of the ones before. The landscapes look breathtaking - I can only describe it as 'everything feels bigger'. Uncharted: A Thief's End especially felt like you are the main character in the biggest blockbuster adventure ever.