I have an '08 on which a trunk tail light bulb went out during a multi-day group ride. They were shocked that I felt it was important to replace it ASAP. When I got home I replaced all of the bulbs except headlight (recently replaced) and high beam. Excluding the headlights there are 11 bulbs on this bike that burn all of the time plus 2 amber rear turn signal bulbs. I figured that if one went out the others aren't far behind. Interestingly, Honda used dual element bulbs in the tail lights and the tail/brakes lights so there were 10 of the same bulb, 2 amber turn signal bulbs, and the license plate bulb. Anyways, I commented to a couple of the group members that I had replaced them all and both were surprised that I hadn't simply purchased a spare bulb or two. What are your thoughts on this? Are you a one-at-a-time-er or an all-at-once-er? BTW, I stowed a couple of the old ones as spares.