Good dealership! Do you bring them any work? My local dealership looked at me like I had three heads when I mentioned swapping shims with them. They said if I had them do the job, they would have swapped.
The mechanic told me they are only 2-3 dollars each. When I went to buy them, they were $10 each, but I got them for $8 each. Buying aftermarket shims, I can get 5 of the same size for $18 after taxes.
It seems these engines most of the time don't need much valve clearance adjusting. My 08 with 47,000 kms needed 13 out of 16 shims changed. I had 6 below min spec and 7 right at min spec. I shimmed them all to the middle/high side. Now I'm convinced I'm good for a very long time.