Thanks for the good information. I have seen the Honda, and it seems to be the better bike, but I just don't fit it. I am 5'2" with an inseam of about 26", so shorter is a big plus for me. I also like that both Yamahas are substantially lighter than what I'm used to.
Although I've been riding for about 40 years, almost all of that has been on pavement. A bike which is off-pavement friendly would also be a plus.
Mostly, I think I would be commuting, from Kona Town to Kealakekua, sticking mostly to the back roads. Eventually, I would like to do some exploring, Ka'u and Puna at first, then maybe more north. I have friends in Mountain View, so I'd make an occasional trip there as well. I think I'd like to do Mauna Kea at least once, just to say I've been there.
Thanks for the help, it gives me some more to think about.
Ua mau ke ea o ka aina i ka pono