Alright, so we finally arrived at the exact same conclusion. Glad we can agree on this. That is exactly what I am doing: I rent, and all my surplus is stuffed into passive funds, for years. But I admit my case is slightly different from the norm. I do not live in my home country, would I have a place where I really felt I want to settle then I would probably purchase as well, but I would pay up in cash and be done with it.
Actually, found this:
year median_px monthly_rent 10_year_$return annualized_return minus_expences
2010 221800 855 174440 0.1458528428 0.1158528428
2000 119600 602 94140 0.1190139064 0.0890139064
1990 79100 447 61060 0.1293644068 0.0993644068
1980 47200 243 43160 0.2538823529 0.2238823529
1970 17000 108 13620 0.1144537815 0.0844537815
1960 11900 71 9586 0.1303508295 0.1003508295
1950 7354 42 7656 0.2605854323 0.2305854323
1940 2938 27
The point of it is that even without the tax benefits an average American would have done pretty well on his house purchase. Almost as well as equity investments.