Well, we bought a 4K TV tonight.
I was thinking about replacing our old LG plasma (720p) in the great room- we use it a lot more than we thought we would, so I wanted something bigger (50" or so). I wasn't thinking 4K, but the receiver (Yamaha RX-V375) has 4K pass through capability, so no equipment changes would be needed. As we looked, we realized the 4K did look better than the $500 1080p sets, so we leaned that direction. We found a Vizio 50" 4K set (the P series that seemed to do well at CES) at Walmart for $900, and with our 10% discount (wife works for them), it was reasonably price competitive. So we bought it.
I've got it installed, and it looks great. I calibrated it using the THX iOS app (a nice and easy way to do it... no, it's not a top level certified installer calibration, but it's good enough). The remote even has a QWERTY keyboard on the back... that's so useful I'm thinking it ought to be a mandatory feature on all remotes from here on out.
So, look at me- naysayer, and I was one of the first (if not the first) on here to take the jump. I'll eat all that crow in front of the TV, thanks.
Now I am wondering how long until DirecTV rolls out 4K capability to TVs that don't have a DirecTV RVU built in.
I did see Netflix and Amazon have some 4K content. I've upped my Netflix plan to include it; I now have to figure out how to program my Logitech Harmony for Amazon too (it's not as easy at Netflix).