I'm not a musician or singer either for that matter. anybody know anything about these and if they are worth anything
http://charleston.craigslist.org/ele/4328904672.html

I see them on the Atl CL from time to time for ~$100 to $120.
i have thought about getting one, but like you I do not play.
Most have been played now, but a few show up as new.
I believe they had a plate on the back of the neck that matched the VIN on the car that it came with.
(edit you can see this on the back of the head in one of the photos)
It is cool, but an undervalued trinket now.  In a decade or 2 it will have way more value in my opinion (but only if still with the car it was purchased with...).
KC

Thanks for the comments.  I think if you had the car and guitar it might be of interest but probably not just the guitars.  Looking forward to bugapulaza.  Hope to meet some of you there.  I met David there last year and that was  when I started reading the forums here.  I wish I had taken the opportunity to get to know him better while I could.  He really impressed me as a super nice guy and talked with me like he had known me my entire life.  Sorry to get off on a tangent there.

somebody told me that anything new that is claimed to be "collectable" won't be .   looks like that might be the case with this other than it is VW which is always somewhat "collectable" for me

It was a marketing deal to draw attention to the fact that VW finally installed a generic 1/8" audio input jack in their cars.

http://www.autoblog.com/2006/10/03/vw-gives-customers-the-axe-electric-guitar-comes-with-every-veh/

There was also a commercial with Slash playing the guitar using stacks of cars instead of amps.

A friend gave me one five years ago. I do not play, but love any kind of VW swag.