The bike is beyond pretty... Look at it this way, The Ducati is like that girlfriend that you have on the side. She is sexy, athletic, fun to ride, and makes your friends jealous... but she's just after you for your money!
The Buell is like your wife. After years of marriage, you may not be as physically attracted to her, but you have grown to love eachother for what's on the inside. She knows what turns you on, and she can make you look like you ride better than you actually do.
Think of things in the long run...Maintenance on Ducs is much more expensive than Buells, it is also typically more involved. I had this same Decision to make when I couldnt decide on my 1125R or a Ducati 1098. it was almost twice as much to insure, twice as much to repair, the service intervals were almost twice as often, and parts were just rediculous. I am talking about an $800 wheel (a stock one to boot.) not to mention the price tag on the bike nearly $18K new...Now the 848 is only what...$13,500? but you still have the maintenance and everything else to consider. take it all in and decide wisely