I think it was Nick Hornby who best wrote about Bob Dylan fanatics. That you could own every LP he ever released and gone to see him live more than any other artist and really like his music and not really know the obsession. Not until you follow his tour like a remora and own literally hundreds of bootlegs, do you know Bob Dylan.
What I find particularly amusing about the detailing of every acoustic guitar the man ever played, is the brevity of the electric guitar section. Scroll down. Way down. That, to me, speaks volumes about the nature of obsession.
(Please note Dylan is not playing a D-28 or J-200 in the attached picture.)