Oddly enough, when I recently bought my '01 Triumph, we used the credit card! We've been paying off debts, our credit is good, and we have always avoided using those checks they throw at you. So, there was pretty much the bike we were looking for, at an acceptable price. Our cash flow is good, but a little short for a few months because of house repairs. I called the credit card company (USAA) and asked what were the conditions on the latest check they sent? If we hadn't asked, the interest was over 12%! Since we did ask, there was a deal we could request, and get 2.9% for 12 months. That's a lot better than the bank or anywhere else, and we figure we can pay off in less than 12 months. Soooo, we did what we wouldn't normally do, and used the credit card check.
I don't exactly advise it; but it does show that sometimes if you ask around, you find useful surprises.