Earlier quoted context omitted.
Those loans can be a profit center as they make it really easy to miss a payment, and then instantly jack up the rates to ~20% APR. Think short window to make a payment and no automatic payments available. It’s probably not worth it for effectively a sub 1% discount.
> It’s probably not worth it for effectively a sub 1% discount. The discount is small, I agree. But it's always worth it. It's riskless if you have the cash anyway.
And regarding having cash: if you set aside the full amount in cash at time of purchase in order to reduce the risk of not being able to pay the rates, then you did win absolutely nothing. Opportunity cost of not having that cash available for profitable investments in case of paying in cash is what could possibly be the reason for the credit variant being cheaper in the end, but that of course depends on you investing the cash and divesting just when it is necessary to pay a rate.