You're right.
That's why high end guitars exist - the chance of getting great sounding specimens are higher than say... that $300 guitar, which CAN have gems, just harder to find and even when you do find one, how polished is it compared to a gem of a high end guitar?
No, wait. Scratch that. Tone is in the fingers. Gimme a Kapok and I shall out-tone a masterbuilt guitar.
haha i think i hear someone calling for a guitar battle eh?