So, let's say you are in Hawaii for 10 days. It's 26-27C for the high and around 20C for the evening although, it's windy and often chillier then it would seem from the numbers. Often partially cloudy. As some of you might know, 9 out of 10 riders over there wear no gear while riding. When I say no gear, I mean nothing, no helmet, and that seems to be the general attitude. The traffic is relatively relaxed, but relatively busy too. The roads, according to your estimate won't be all that great to ride if you head out.
You and your wife want to rent a couple of bikes. Most rentals are Fat Boy kind of crap you don't really want to ride. You can't find 2 bikes you really want rent, not close to your hotel anyway. Your best option is a HD XR1200 that you read good things about and a ZX6R.
You can get a helmet but that is it. No other gear, not even gloves.
Do you rent?
EDIT: This is not to make the decision for me, I'm back from Hawaii and I'm just curious what would people do in the situation.