FWIW, I know this is late, given that the last post was in August 2011, and it's now November 2011, but one of my guitars is a Guild GAD 30R (or R30), an OM style guitar available anywhere that the Imported Guild line (GAD)is available, and although the OM nut width is 1 3/4 inch, the actual thickness of the neck is incredibly narrow! This guitar has the thinnest neck I've ever encountered on an acoustic guitar, and it is uniformly narrow in thickness from the nut all the way to the body. In fact, the one great feature of this guitar is its flat, thin neck. As a finger picker, I find this guitar to be the easiet to play. However, it doesn't have nearly the tone quality of my favorite guitar, a Martin 000-18 Norman Blake, a 12 fret to the body OM with a 1 13/16 inch nut and a relatively thin V-shaped neck. This V-neck is considerably narrower than other Martin V-necks, and has a great feel, but the 1 13/16 nut width is 1/16 inch wider than the Guild, and therefore takes some getting used to...   The martin SOUNDS so heavenly, though... Unbelievably wonderful tone! The Guild sounds tinny and boxy compared to the Martin, but it IS easier to play because of its thin, flat neck.
The Guild is worth the money just to get a guitar with that neck.
The Martin is worth it's price because you'll never find another guitar that sounds so beautiful.