But on the other hand, it's probably greener to build a house to last 50-100 years and then tear it down in 75 years when housing preferences change rather than

But on the other hand, it's probably greener to build a house to last 50-100 years and then tear it down in 75 years when housing preferences change rather than build a house to last 1000 years and then tear it down in 75 years when housing preferences change. On the one hand I think this is a worthwhile experiment, on the other hand I can see why most houses are not built this way.