I am interested in buying a decent acoustic. I sat in a room playing guitars ranging from $600 - 4,000( all new Guilds, Martins, Taylors, Gibsons, etc.) The one I enjoyed the most was the cheapest--a Martin D-15. The bass response was great and the entire soundboard was made of mahogony. It's also an extremely light guitar which fealt a litter odd. Has anyone else had experiences with the D-15?