I think the bigger issue is that the majority of HDTV's in homes aren't 4K to begin with. Selling a product geared towards a much smaller market.
Maybe that trend will be different a year from now, though.
I've been waiting to see something like this, but the only thing that will cause 4k adoption is TV sellers no longer selling 1080p tvs.
People forget that the actual main drivers of HDTV adoption were dropping panel prices combined with Government regulation of HDTV digital broadcasting over the air.
Thats what caused people to either ditch their 10+ year old tube tv or to buy a digital tuner box. It just happened to coincide with the advent of very inexpensive panels.
It was the perfect storm.
4K adoption isn't going to be nearly the same and it is why you see companies trying to push people down the path.
The majority of people will nit be able to tell the difference between 4k and 1080p. You can I might because we're on a gaming bord where a lot of members obsess over IQ, but most people sit too damned close the tv already, so 4k will be lost on then.
I think it is nice that Sony and MS are going to offer 4k capable gear, but it won't be the standard for a little while longer, and worrying about 60 fps now is kind of silly.
Let's take baby steps and build out an actual market and then worry about better fps etc. Think of this as the early times of HD gaming, like 2004/2005 going in to PS3 launch. Remember HDTV/Digital standard switch didn't happen until 2009. That was 3 years almost in to Ps3s life.