Suppose you bought 10 used J-45 Standards from ten different online resources.
All appointments being equal, how many guitars do you believe you would find to sound poorly?
Granted, there might be a clear rating of all ten, best to worst. But how many of these do you believe would make you say, “yuck...i’d never want this J-45.”
(and, yes, please keep your “i’d never buy without playing it,” responses, and pizz off.)