I refuse to upgrade to anything 4k. Sorry consumer electronics manufacturers, my Blu-ray collection JUST became half way decent, so i'm not trying to upgrade formats again for a decade or two at least.
I've been waiting for OLED tech to work out all the kinks before upgrading. I was feeling some pressure until I realized I could do 4K DSR gaming on a 1080p monitor for essentially the exact same effect as I'd get on a 4K TV, so I'd rather wait for the perfect display now.