I just completed my 7,500 mile service...@ 8,300 miles.
My dealer (Ducati of Newport Beach) quoted me @ $750ish which included the full service of fluid changes and valve adjustment. Not terrible, but I looked around locally for other options. I posted in the SoCal section and a few people highly recommended Motoservizio. You can certainly take it to another place for service if you so choose. Just make sure it's documented.
This was a concern of mine since I commute 100 miles daily to work. I have a 3 year unlimited mileage warranty from the dealer so I want to make sure they will honor it. At 3 years at my rate, I'll have a ton of miles, so this warranty is useful to me.
Anyway, I'm not sure I should quote Motoservizio's price, but it was significantly better than the dealer's. BTW, there's no need to go at EXACTLY 7,500 miles. I went almost 1K miles more and that's with me riding 100 miles a day.