So about two years ago I bought a house for $590,000 around the corner from my house at the time and asked on this forum if I should keep both houses and rent out my old one. The answer was a unanimous no, that it would be crazy to keep both houses hoping for price appreciation. I ended up selling my old house for $490,000. Hindsight being 20/20 my old house just sold again for $700,000. Would have been up $210,000 in two years!