I got rid of my Duc because it was only a 620 and not fast enough on the highway. I spent a lot of time dealing with "deferred" maintenance from the previous owner, but after that was done I didn't really feel it took much more maintenance that any other of my "fine ride" bikes
I know you have to check the valve clearances and potentially adjust them, but after the first adjustment the clearances don't tend to change much, in my experience and those of the Ducati mechanics I've talked with.
Rat, I'm always curious about other people's experience with their Ducs because I'd like to get another one at some point. What maintenance issues did you have to deal with?