I have often wondered why bikes need the first service these days, it used to be to clean out the bits of rubbish left by the crap machining of parts, and no paper oil filters in the old days, but I'm pretty sure you could eat you lunch off an engine part made at Honda. As it's been mentioned, it's all about the dealer making a living, there is not a lot of profit from the bike sale. You could take a gamble on not requiring any warranty work and do all your own servicing, the savings after the first four years would cover a major repair! but do you want piece of mind?