Here is a tribute to Doc Watson played on my Martin Sigma (Japan, ca. 1975) OM model. A $99 dollar beater that sounds amazing after I did some neck adjustments, reset and shaved the bridge, reduced the saddle, shaved the finish and some wood off the neck to make it thinner (yes I did!). This lovely old guitar is about playability and sound, not so much about looks:
https://www.youtube.com/watch?v=Z0O0qTdYeJI&feature=youtu.be
https://www.youtube.com/watch?v=Z0O0qTdYeJI&feature=youtu.be