the best thing any music store could do to sell these things would be to have a guitar set up on a stand beside a stool. If you play it, you'll want it.

But as already stated.. it's kind of a one trick pony. Chances are you already have an amp with reverb, which is basically what the Tonewood delivers in a smaller package. How much are you willing to spend to have reverb magically emanate from your acoustic guitar?