I will say it is better to do so. Yes it is expensive, but maybe better of finding someone and spending nice cold Sunday in the garage and DIY!!!.
They advise it for a reason, what is next check due 30k???
Same thing with first oil change done usually after 600-800 miles. Why ??? because you need to.
Same thing with wheels = tire is changing shape due to use and might loose balance. No one does this, but we should.