Well I have not got The Martian yet so when it appears in shops if I had the choice of the Bluray version of it or the 4K Bluray which ALSO contains the Bluray disc that I can play right now, then I would go for the 4K/Bluray combo even though I have absolutely no way to play or watch 4K disc and probably not for a long time.
So studios, if you are listening, if you want people like me to buy 4K discs (for future use) then make sure I can play a version of it right now in my current HD Bluray setup, otherwise I can't buy them - do NOT sell seperate 4K and Bluray disc packages in shops - if you do there will be no 4K disc sales at all - you will have to wait a few years to do that!
Pricewise, I don't know, if it's £29.99 at current exchange rate, that's nearly €40, which is too much really for a single movie. Now price is secondary to me if I really want a movie, but if it's impulse buy and I don't really want/need it then no way I'd pay that much.
But if a Bluray version of say The Martian was about €20 and another Bluray/4K combo pack was €30 then yes I would pay premium for the future compatability of a 4K disc that I cannot use right now, as long as I can watch the bluray right now. If it turns out that the only option was Bluray for €20 or seperate 4K disc only version for €30 then no way would I buy the 4K version, because I can't use it right now!
Still by right the Bluray price should now be reduced as it is no longer the premium product, so the Bluray should be €15 or less now and the 4K/Bluray combo should be at most €25.
Just stop ripping off the people like us who actually buy movies. I'm sick listening to people who work with me on same or more wage level I am (50k+), sharing pirate movies that they have downloaded on removable external drives throughout the office and never spending a penny on movies while watching all the latest movies way, way before I am able to purchase and watch them on Bluray myself - it is really sickening and demoralising - I wish I could shop them in and stop them being able to get away with this piracy while gloating and laughing at me for actually buying movies. They have no excuse, but the one they always use is movies are too expensive to buy or go to cinema to see. It's actually complete bull because even the rich managers and company bosses are at it and they have way more money than I do, obviously because they are not spending it foolishly as they say on legal movie watching...