Lots of good stuff here in this thread. A few thoughts if I may ramble:
I'm a tractor dealer, and M5farms has it right. When as a consumer we get our 1% "back", keep in mind that the price was raised to cover that. If credit cards did not exist, prices for items would be lower. But the convenience of a card is hard to argue. I bought a couple of forklifts a while back from a major rental company and I asked them if I could put them on my credit card. To my surprise, it was no issue. 1% back on tens of thousands of dollars in one transaction was pretty cool. Had they been an independent smaller rental customer I am sure they would have balked at that.
As for the original poster, thanks for your civility when folks are beating you up a little bit. I understand your position, and what you say makes sense to me. However, finance companies are more likely to ride out a loan for someone whose credit has become sketchy rather than to enter into any new agreement, even if the new agreement is better than the prior. Because when they first started financing with you, your credit was great. Now it is not, and now you are treated as a marginal or conditional risk.
Like most dealers, we sell millions of dollars worth of tractors a year, roughly 65% financed. Occasionally we will get rejected on a sale for which I think the rejection is unmerited. On 3 occasions that I can recall, I contacted the finance company and pushed them to approve a loan that they rejected. A volume dealer can sometimes make this happen. Ironically on all three of those cases for which I got my way and they reluctantly approved, the customer defaulted on the loan. Really? To me they looked good and the reasoning for not initially approving them looked spurious. But these loan underwriters seem to know what on paper now later becomes a default. They may know that guys with green socks eating potato chips on Tuesdays always default....it doesn't matter if it makes sense. They crunch enough data to become pretty good at what they do. By the way, on each of these, I bought the tractors back so as to not cause the loan company any loss. I felt I should, and each had enough down payment that it really wasn't a loss for me. So in a sense, it wasn't much of a risk (big down payment) but finance companies prefer to not repossess.