Agreed. If there's a chance of it being moved and surviving in another location, do it. If there's a way to develop around said tree (i.e., it's on the edge of a development tract), leave it there because, you know, it's been there a while and seems to be doing okay for the most part.
I'm all for developers planting lots of new trees as well, so long as they're native species that can make it without too much care (because that is one of the first things to go when businesses leave, etc., and non-native species tend to die).