But here is one thing I don't get. If I buy when it's at $100 USD and I have about $3500 USD worth at 100 bitcoin per dollar. Say I give someone a loan for a car for that amount and then the price of bitcoin goes down. Say I've used one of the loan sites on here to manage the loan. Does it change the price on the bitcoin due to match the USD or will one car payment be $200 and the next one $300?

Did that make sense?

Thanks