See, that is the problem, home prices were also artificially inflated and when you double the price (opposed to value) of something, then loan 25% of that inflated price.... you are gonna have a problem down the road junior!
Not a problem where I am at, time is on my side and I do ok. Now if I bought a 500k house, well, that would have really stretched me.
But yes, it was simple supply and demand. Everyone was getting a loan, so demand skyrocketed. And, of course, prices did too.