So if you understand how credit works, the answer should be pretty obvious. Imagine paying off that debt while good/services rise in cost (like now) or (knock-on-wood) you loose your job. Not to mention the risk you are taking if you are looking at a variable rate. The more extreme cases of misuse of credit are those families that assumed that a $100k household income can support a $500k home... the same families that are foreclosing and whining at this time (without realizing not all the blame lies with the lending institutions).
No matter the up front savings on a good deal you find, buying on credit ultimately results in you paying too much. I am no angel... I've used credit but I do it responsibly (most of the time

). For now, all photographic purchases (and saving for them) have been put on hold and I'm putting everything into the last couple thousand left on my car loan and other bills. The idea is to limit my risk until things get better.. after all, I have a family, house, and a child to support.
If you don't believe things can get really bad really quick, you should talk to the unfortunate folks in Michigan.