> It obviously benefits buyers in non-hot markets. It's pretty nice to put $7500 down in the mid-west for a house.

Unfortunately banks won't loan what they see as small mortgages like that. This leaves the lower priced homes only available to landlords buying cash. I live in a home like this myself - all the banks would happily loan me $215,000 with $35k down, but no bank would loan me $15,000 to buy a $50k house. There's many people renting in my city that have decent credit that could easily afford one of these lower cost homes, but instead the houses stay empty or get turned in to rentals.