[leanstartupnoob]

The point is that credit cards are just lines of credit. Which typically have the high costs that you pointed out. But there's nothing special about the 16.99% interest rate and many people have cards with special intro rates at 0% lasting for 6-12 months.

I don't see a lot of reasons why we can't eventually have pre-approved 30-yr mortgage credit cards accepted by companies like OpenDoor focused on selling houses.