It might cost $15-$275/year (only the 1st year) but the less times I see the monthly payments draining the bank acct, the better I feel.Well, if the cost is exactly the same, I'd rather stretch out the payments and put the capital to use in the meantime. Free money is free money.
But if there's a finance component, then I'd have to break out the calculator and see if I could potentially earn a better return by borrowing against the financing company.
0% financing is only smart if you invest the capital. Otherwise, the finance company gets you conditioned to paying a monthly fee for a car, cordless drill, whatever. Most people go shopping for a new car the minute their old car is paid off and become stuck in a perpetual payment cycle. Also, they're more susceptible to getting upsold the next time they enter the store or dealership: "Well, the 5-series is only another $100 a month more than what you've been currently paying..." And no guarantee the finance rate will remain 0% on the next go-around.
And also, if they're not forced to park their cash in a depreciating asset, that money inevitably ends up as a down payment for yet another non-essential luxury item.
Some people really do need to be saved from themselves.
After the first year paying the "lump", simply apply the same investing strategy.