To each her/his own. I got the "complete" book back in 1976 just prior to going over to the other side of the planet & back. I played for & jammed with lots of Musicians & amateursfor a couple of years on my way there & back. In these days & times, I play & jam with lots of Musicians, pros & amateurs, most all genres of Music, from places all over the planet, & often many of these tunes are requested/played. The old '76 book is still around, but in several pieces. I've always been an acoustic Musician, pickin' & strummin' my trusty old J-45.
   I've also played Beatles tunes on my Mountain Dulcimer, Piano, Organ, & a few other instruments. I once played "Eleanor Rigby" on tinwhistle in the Irish style (highly ornamented) & everyone was asking me what was the name of "that old Irish tune" I was playing?
Within you without you is always lots of acoustic fun--if you can find a sitar player. Bouzouki is kinda fun to substitute for the sitar.