When is the last time you walk into your local Walmart, Bestbuy, and Target stores and browse the 4K uhd section? 4K movies are so expensive and limited as hell right now. Wait till it's standard then get it.In the meanwhile get a 4K tv and stream 4K content.
I got a 4K player at Christmas on sale for $189 and so far I have 2 movies for it and have only used it a couple of times. I would have been much better off waiting another year or two when the prices will probably be under $120 and there is a decent selection of movies out there.