The Folk Boom and the growing popularity of Rock-a-Billy and Rock-n-Roll coming out of the 1950s created a massive demand for acoustic and electric guitars.
Market valuations for guitars, mandolins, banjos, ukuleles, tipples, and similar stringed instruments are complicated. It would be easier if it was a simple question of supply and demand.
Notable Guitar Sales
The guitar has become an icon of the role of popular music in American culture. One direct consequence is the rise in value of iconic instruments.