I get where you're coming from, I really do, but I also think that perspective effectively means that you should never migrate -- ever. To anywhere, at all. I take the stance that gentrification is inevitable, unfortunately, but it can be guided and managed (and I say this as someone who's been gentrified out of an area I'd really love to live in for the rest of my life). Just like you can't control the weather, you also can't control migration patterns but you can manage them.