I'd take Kevon's advice seriously. In my own humble experience, I have only been to Europe (Poland) once, and a little jaunt to the middle east. I really enjoyed my stay in Poland and that I was there long enough to learn the language, and really see and try to understand the people. It change my way of seeing things to see people who thought completely different than I did. But, I wouldn't have noticed that in a few days, or even months.

On the opposite end, here is a video on youtube, Where is Matt? This guy went to all kinds of places in a relatively short time. If you look on the side bar, he did a lecture at a university. When people ask him specific questions about the places he was at, sometimes he would say, "I don't know, I wasn't there very long". Anyways, food for thought.