Other than a fun, "Let's see your guitar on a bike" thread I don't see the point.
Don't bring your Les Paul, but you can buy a decent dreadnought for less than $100. That's plenty to get you through a camp fire night, and with some pickups you can even survive a gig. All for less money than one would worry about (too greatly) getting trashed in a crash. Although bulky, guitars weigh virtually nothing, so on a motorcycle that is not an issue.
That being said...let the "Show your guitar on a bike" thread continue.