The limiting factor isn't the availability of 4K content. There could be 4K content coming out the wood work, the problem is ISPs and the price of 4K TVs, neither of which seem to be improving in a year or two.
you guys are so stupid when it comes to technology....ya'll nikkas use all these products yet you continue to doubt the exponential trends
4K TV's are dropping in price....by 2015 you should be able to buy one for ~$3k
that should make it mainstream price-wise and also don't forget that google fiber-esque providers will more more widespread as well
I won't be the least bit surprised if in 2015 having a 4K TV and 1gb/s broadband speed is equivalent to having a HD TV and 10mb/s broadband speed is today.