However, what things like housing and medicine have shown us are that wholly free markets aren't very good with things that people place nearly infinite value on. My life saving surgery will cost me 10 million dollars? Okay, where do I sign. That number might as well be a billion dollars as long as you're giving it to me. Housing is not too dissimilar. A thirty year mortgage is already in comical territory, it's already functionally synonymous with "a lifetime."