I couldnt be stuffed waiting to save. I saved up half of what i needed in 12 months, got impatient, then borrowed the rest. Its a 5 year term which should be paid off within 18 months. As for the interest, it equates to about $500ish (for 18 months). Considering my car is still worth more than what i paid for it, therefore I'm still on top. Like Warpspeed said earlier, its all just number crunching.
I think its a little pathetic how people can judge others by how they pay for things. Everyone has their own reasons.