I think Chaley has it right. Users want quick fixes (to problems they created
because they did not RTFM (or MR) first
I had an advantage when I ordered my first (and only) device, the Astak PEz... I had to WAIT.
I put the time to great use by reading posts here at MR.
By the Time my PEz finally arrived, I knew many of the issues of (Calibre) Library creation to avoid.
I still made missteps,
... just not as many