I like real books better too. They work anywhere. They never need new software. They can’t be retroactively re-edited or censored.
I was in a Barnes & Noble the other weekend and thumbed through “Fiddler’s Fakebook” and also saw “The Daily Ukelele” nearby on the shelf. Available on Kindle or Nook? Doubtful. Music books would never work well on an e-reader; they HAVE to be hard copy.