[NYNick]

Having read several responses, I'm changing my vote from "no" to "maybe", with a few caveats.

First, if it's a new toy and you're new to the 911 world, absolutely not.
Second, if you can't afford to pay cash, absolutely not.
Third, if you're simply putting your cash to better use and can borrow at lower rates than you can make investing the cash, maybe yes. (I did this with my new BMW)
Fourth, if you're well heeled and you're just playing the car market, sure, go ahead.

I'm sure there are others, but financing an air cooled to get into the hobby is a bad idea.