"at worst, it depreciates by 50%, you still get $1k back from every month you paid off the mortgage" Not sure what you mean by 'get $1k back from every month y

"at worst, it depreciates by 50%, you still get $1k back from every month you paid off the mortgage" Not sure what you mean by 'get $1k back from every month you paid off mortgage' Here's rough justice. $300K, 6%, 30 yr fixed mortgage. Annual payment is $22K(about your 2K/month) for the life of the mortgage. Avg int over the first 5 years is $17.5K. So after the first five years you've accumulated $22K in equity. If your house goes down 50% you own a $150K house with a $278K mortgage.