There actually was/is an obvious. Jobs are bouncing back in several urban markets, and Quantitative Easing has been continually making it cheaper and cheaper t

There actually was/is an obvious. Jobs are bouncing back in several urban markets, and Quantitative Easing has been continually making it cheaper and cheaper to borrow larger amounts of cash. As it becomes cheaper, people borrow more, bid more, and house prices go up. The question is how well they will sustain, and whether a future market shake up (quite possibly Trump-related) would reset things to more sane levels, and for how long.