Wow, thanks for all the input! Seems like most people love having them and the good definitely outweighs the bad.
In my case there's a bit of sensitivity, so it would certainly do my eyes some good. I've had normal sunglasses once and loved how pleasant it was when I wore them, mostly on the beach. But I couldn't wear them for a longer time, because I can't go without specs for too long.
I don't have a car for now because free public transport is included in my student fees, but I drive a lot when I'm at home.
My prescription is +2.0, not too bad. I think I could go some places and ask how much it would be. Although I really can't pay the same I paid for my normal specs, so no designer frames this time.