I disagree with most of you. I think Sony is on the right track here!
First, they actually are doing
something positive and pro-active for the development and distribution of 4K content. Who else does that?
Second, I am convinced that downloading/streaming content is the future. In fact, personally I own very little physical media. Since years I have been legally streaming (and paying for) music via Spotify. I also stream (and pay for) TV series, I have used both Netflix and similar Swedish services.
For movies where my quality demands are higher, I typically rent new and interesting blu-rays and rip them loss-free to my NAS (ripping is legal in Sweden, for personal use if you have paid for the rent) for later viewing. The NAS has RAID and multiple drives so I risk no loss of information. I keep a 'library' of 50-100 ripped blu-rays until I have watched them and will delete to free up space for other films. OK, this method does require some planning ahead, but this is for me part of the fun -- to keep an eye open for interesting titles which I will put in my library for viewing during the upcoming months. And if my wife really needs to instantly watch something particular on a Friday night, we can always stream via Netflix or iTunes, with slightly lower quality.
So, personally I see no problem waiting a few days for a huge 4K title to be downloaded. But then in Sweden, ISPs typically don't limit bandwidth and/or usage. But I would assume that also in the US, enthusiasts do have the possibility of paying a little premium to get unlimited monthly broadband traffic?