Good thought, and that's true in my experience as well. People are often very welcoming, even when they don't have many externally-apparent reasons to be.
That said, I have a colleague who spent months in Kabul in the 1960s, and it's sad to think that the intervening decades of war have changed the country and the city irrevocably.
RE: The Silk Road Diaries: Pamir Highway, Part I