But lets assume you are a mutant with super human visual acuity.
What's the betting that anyone is going to produce an expensive product that only you can get the benefit of?
I prefer to think of myself as having normal vision and people who can't tell the difference to be lacking...
And it's nothing to be ashamed of, my girlfriend cannot tell the difference between the iPad 2 and 3, it's great for her b/c she got the thinner one at a cheaper price!
It's not a product that only I can benefit from, there are a lot of people that can tell the difference, as there are a lot of reviewers at this years CES who not only said it was a big difference, but also that upscaled 1080p content looked improved. Likely, upscaling will be used a lot until 4k content is more common place.
While I ultimately think that TV makers need to focus on a better picture, not just more pixels, the pixel jump is coming. It's an easy thing for TV manufacturers to do, and consumers will buy it, because they will naturally assume 4k is better than 2k.
Right now, I agree that not everyone watches a giant TV close up theater style like I do, but what if they did have a 100" TV or projector that looked great up close? Maybe more people would! It doesn't take special vision to notice this difference, we're just not doing it right now, but we will.
Seriously though, you need to read some of your statements. Just as I said, you're like one of those people a few short years ago who couldn't understand the retina screen, and probably before that HDTV. Why do I have to buy a new TV, my standard def is fine... and it doesn't have those black bars!!!!
It's coming, deal with it! The real question is, will Apple be bringing it?
Edited to add a paragraph.