| As said by others, service costs for the 600 and 1 year service vary because some dealers threw the service in with the sale of tbe bike. Rather than do a deal on the price of the bike the dealer would do the services for the cost of parts only.
Personally, I go to Italia and have done for years. Small annual service is around £220 and the large 2 year service with belts, clutch and brake fluid swap, coolant etc etc was £328 (ish). I'm happy with these prices as I feel they are competitive and I rate the work and guys at Italia.
I have mates with Jap bike who pay similar or even higher service costs so I feel that I'm paying about the right kind of money. | 
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