People don't buy houses, they buy payments. Specifically, whatever their lender will give them. Any additional principal balance is more they have to qualify

People don't buy houses, they buy payments. Specifically, whatever their lender will give them. Any additional principal balance is more they have to qualify for and more money required for down payment. If you're thinking "Wow, that's nuts that people would spend 100% of what a lender will qualify them for," then, I say to you "Welcome to America."