I was seriously considering it a few months ago. I mean, so close I was staring at the 'Buy Now' button after entering all my details. It's just that there's no content at the moment. So in essence you're paying for R&D. I'm actually looking at buying a 4k PC monitor as Samsung is selling one for fairly cheap, around 800 NZD. Fuck knows what that is in USD/GBP. That's probably a better way to go right now than dropping 7k on a TV.
When it becomes widely available and supported, I'll buy the 60'. Guaren-fucking-teed.