Wow, your dealer is really raking their customers. Mine charges about $200 to check valves on a parallel twin.
I know this is a fixed price because last time I took it in, it was a "bigger" service, where they had to check valve clearances. But apparently something went wrong when they tried to take apart something (I forget the details) so they had to work much longer than expected on it. In the end, I didn't have to pay more than I had expected, taking it in.
Now, all this isn't to say it's cheap. I was horrified with the prices: it often costs more than my Mercedes' service at a Mercedes dealership.
(Old) Ducatis are also a pain with the desmodromic valves (i.e. springless valves). Some of their valves have 0,0 clearance and the mechanic needs to hone down shims to an exact fit. Also the reshimming needs to be redone on older Ducs after only a few thousand kilometers/miles, or annually.
In contrast, BMWs older air/oilcooled boxer engines are a joy to service, easiest accessability (cylinder heads stick out sideways), only 3 tools needed for adjusting valve clearances (two types of Torx/allen keys and a feeler gauge set), 20mins of work or less depending on your routine.
Ugh, pulling and especially re-inserting the camshaft shouldnt be done in a hurry. At least from my experience with the V-Strom's V-engine. Needs to be cooled down and insertion of the camshaft needs proper care (no dinging of the bearing shells) and one must make sure to not skip a tooth at the geartrain/chain.