Here in Canada, Honda has official dealers (privately owned and operated) but they only allow so many to be "motorcycle" and/or "auto" dealers. There are lots of small engine outlets that carry their off-road ATVs, lawnmowers, and generators. One such dealer is local to me and a lot more convenient for access. I've found that even if they don't have access to look up parts, if I take in the part number they are more than willing and capable to enter it into the Honda ordering system and order in the part from Honda for me. Their pricing seems to be standard Honda listing (the same as a motorcycle dealer) and the shipping service is usually pretty quick as they regularly get other supplies from the (likely same) Honda warehouse. In fact, on some really old stuff, the warehouse doesn't actually stock it anymore; but, the ordering system ties into old stock in various dealers across the country and will order it in from them. Once I got some grips shipped out of Quebec, but they were mis-labeled and the wrong ones, so they sent them back at no charge and got another set that were correct from B.C.
It's a lot more convenient for me to get the genuine stuff.