When you order a drink, take a first sip and immediately want to spit it out: do you sit there and keeping drinking it, hoping that in the end you will actually like it? Don't you think that a person who has imposed himself in a shell is already corrupted by it and the chance is higher that you won't like him as himself when you finally get to him?
I dream all sort of things all the time, thanks to a long imposure of books, movies, history and video games. And I have friends to talk those things over with. But it's harder to find a real person or to break someone's shell to see what's actually inside of him. My point is: I don't want to waste time digging into someone, who's dreams right now are about a flashy car to impress his friends. I might not even like what's in the end. And now I have to go and spend the same time on someone else? I'd rather go look for someone who's already real, who already has a higher chance of me liking his/her personality. Even if I won't I'm most certainly going to have a very interesting conversation.