Not interested in what makes something collectible or valuable, or an investment but I'm curious if there's any agreement on what makes a guitar "vintage". To some, if it was made before you were born that's good enough. Saw it in the Sears catalog when you were a kid? Could be vintage. It occurs to me people seeking '59 Les Pauls in the '70's were seeking "vintage" guitars that were less than 20 years old.
Vintage Guitars - Everything You Need To Know
Vintage Guitars - Everything You Need To Know