Actually it’s a pretty bad problem to have. If you bought an affordable house at the time but gentrification comes for your area you suddenly can’t afford to live in the house you bought and despite whatever roots you’ve put down, now you have to try to migrate somewhere else.

Note that even if your tax assessment says you can get a few million out of your house, it’s likely not that easy, it can take a long time to find a buyer in the best of times, I imagine especially if you are seeking a buyer willing to pay millions…

It’s not as bad as renting in the same scenario, but it’s not great to suddenly have rich person cost of ownership come at you when you bought into a non rich person level house