Hey there Nmats
In April I swapped my 2006 CBR 1000 and purchased a 07 Ducati 1098. Fun factor thru the roof. You will probably stall your Ducati the 1st few days, totally different power band. Plus you're coming from a 600, so the difference will be even larger. You're red line limit will be almost cut in half.
Pros: Power band in a better spot (for me). Front end comes up when I want it to, gives you power...now...if I miss a shift...bike really doesn't care...Cool factor on start-up because the motor is quite exhilarating. 1098 drops and turns better compared to my previous 1000, however compared to your 600, the 1098 will be more work. (would be interested in your write-up comparison). Bike response is incredible, it really communicates well if you pay attention. People hear your coming a mile away, asside from the 'neat' factor, this can save your life!
Cons: You can't smack your side mirrors on other vehicles splitting lanes. The side mirrors take awhile to get use to, tough to see blind spots. Watch those stalls, I've gotten use to it, but it's NOT a Honda! On a miss shift (up) down hill, I notice it will cut-out on occassion. Usually cuts on driver error, which NEVER happens....Accessories for this damn thing are hella expensive. Sucker runs hot on summer days, notorious for V-Twins, but it just sounds like it's burning up down there! My wife gets pissed because this bike makes me smile more than her...that could be a 'pro'....
Similars: Power comp to 1000, over all 1098 can't blow away my old 1000, but the power is in a different spot. Compared to your 600, hell hold on.......smooth pitch baby....
848 vs 1098 - I rattled my brain and did weeks of research between the 2. Even have gotten into a few email wars with 848 owners. 1098 is worth more, will resale better, the larger CC bikes always do. I'm happy with selecting the 1098 over the 848. Spending this much on a Ducati and not getting the infamous dry clutch. Cmon now.............
Future concerns: HOPEFULLY this beast hangs in there maintenance wise. Yes, Ducati put much effort in making this bike more maint friendly. No issues thus far, and only time will tell!
Overall, this bike will make you smile more than any bike you've previously owned......