Ducati is making the payments for you, you will still be on the hook for the interest for the term, so it's not a "deal" vs paying cash. And I bet it's 4 months with 5 year financing.
It's only a deal if you intended on financing in the first place.
Not that it matters, but here is my 2 cents on general financing (on any vehicle). Cash is generally not a perk, but not a detriment either (perk on selling price, still always a perk to you to not pay interest). I usually walk in with a check, even though I finance. I can get a blank preapproved check from USAA or Navy Fed (the two I prefer) and say I will be using that, but they are free to try to beat the interest rate I'm getting. And if interest rates are low, like now, I usually will finance it for the longest possible period to reduce monthly payments, and add GAP insurance so since you'll be upsidedown for a while, it will be covered if the bike is totaled (always always always get GAP insurance). So basically this scenario is the same as me leasing a bike, since I'll never own one long enough to pay off.
As to factory incentives, such as the making 4 payments, that is indeed a fantastic deal (so is the interest rate). Note that factory incentives are just that, from Ducati and not the dealer. So you should have ADDITIONAL discounts from the dealer. Don't let a dealer ........ you that the factory incentives are limiting the dealer's ability to drop the price further (which is why factory incentives are always a good thing to capitalize on). Dealers can also negotiate on their dealer fees, though it is like pulling teeth out of a chicken to get them to do so.
But on a side note, great deals and factory incentives are destroying the value of my bike, so I actually think you all should pay full MSRP and stop screwing up my resale value.