I never knew other INTJs were like this. I find that I only stay somewhere for practicality, efficiency, and economic reasons (ex: I don't want to change jobs during a downturn), but I could adapt to very nearly any environment effortlessly. My coworkers were really bothered for their entire 17 days in a very foreign country, but I was fine. I am like liquid water - very adaptable and accepting.
My uncle, a prime example of an INTP, cannot let go of his childhood home that he moved back into after his parents died...well over 5 years ago. This is probably related to book and game collecting, which he also does. I've noticed that they seem to handle change in their physical environment very poorly based on the ones I know and have known...
For contrast, I'm an INTJ, and while I'm somewhat picky (in a gut reaction way) about my environment, I have almost no connection to it. I derive enjoyment from it, adapt to it, and discard it effortlessly. If I move very far, I just sell the stuff I have and buy new stuff, since the physical items themselves have little-to-no personal significance to me...
I talked with my uncle last weekend about international travel and realized that he had incredible trouble with it in comparison. He was envious of my adaptability. Maybe we're the ultimate chameleons; they are good chameleons in their home environment, while we're chameleons in different environments. I'm regularly mistaken for a local in other states and even in different countries...
My guess is that it's an Se/Si thing.