Hunger also changes the world - when eating can't be a habit, then neither can seeing.
I would think flying would be pretty cool. You would be able to fly away from all your enemies and get where you're going much faster. But being invisible? You probably wouldn't use that for the good of man.
I'd been in a vicious cycle and circle of people and couldn't see my way out. So I picked myself up one day about 15 years ago and moved where I didn't know anyone.

