Tom, 1098s are beautiful and I'd love to have one, but as a DD/city bike it would not be very good. It's sort of like a GT3 911 or maybe more like a Lotus Elise in that it does one thing very well and everything else just sort of OK. The Monsters are relatively comfortable to ride and you could even take a few hundred mile trip on one. The 1098 is closer to a Yamaha R1 or the like, a true hyper-sports 1 liter bullet/race bike. If I woke up w/ a huge pile of $$ tomorrow, it's probably the very first thing I'd buy. Of course then I would have a small stable of bikes, one for every occasion. They take up a lot less room in a garage than cars.
I find the comments on this thread interesting, it really is an individual thing what kind of bikes different people like. The Tuono is a great bike, but I do not like the looks of them. At all. Other people love them. It has to be a Duc for me, end of story. Maybe after owning one I'll get it out of my system, (this has happened to me before), but not before.