I couldn't imagine being able to see perfectly all the time. As a kid, I used to pretend I needed glasses by blurring my eyes, putting on some "air" glasses, and un-blurring them. When I was in fifth grade, and they said that I'd probably need glasses by sixth, I couldn't WAIT.
It STILL fascinates me. In fact, I probably shouldn't drive after getting new contacts, because I nearly crashed into the car in front of me a couple times just looking at all the clearly visible things out the window.
I am perfectly happy with my crappy vision, thank you very much. You weirdos with 20/20 don't know what you're missing.