I still haven't seen 4k in the flesh yet, i can only imagine how good it looks :(
If you are not seeing it on a huge screen (80" or larger) compared to a 1080p TV of the same size then it is highly unlikely you would even notice a difference.
May I ask you if YOU haver personally seen 4k in person? I casually go into my local Curry's store where they have 4k TV's showing and it's absolutely jaw dropping. So you're either spreading information you haven't concluded for yourself or need to get your eyes checked.
I have. I have a 46" Samsung 1080p LED TV. I was looking at a 40" Samsung 4k TV and 49" Sony 4k TV in Best Buy, and they do not appear to look any better from about 8 feet away (which is my normal viewing distance). I also wear contacts to get 20/20 vision. My eyes aren't great without contacts, but it doesn't matter since I wear them. Your last line is meant as an insult. Please don't insult me. I am not making fun of anyone. I am stating scientific facts. Maybe you have better than 20/20 vision. Maybe you are viewing 4k TVs that have a large screen size (where I indicated that it would be visable). Maybe you're sitting closer to the TV than I do. There are other variables involved. Please educate yourself before jumping to conclusions and/or insulting others.