One thing the others didn't mention, if you do decide to do this by yourself (which I agree is the way to go if you get the manual, and take your time to learn your bike) make sure to save ALL your receipts, and keep good records.
Otherwise if you ever do need to take it in for warranty work they might decide to be jerks about it.
There is nothing that says the dealer MUST do the service, you are free to do it yourself. Just make sure if they challenge you if you ever need warranty work done you have the paperwork to back up your claim it was done - and right.
... Otherwise ... unfortunately, yes that number sounds about what my local dealer charges for the same service as well.
Good Luck!