Not to defend the ridiculous price, but Sweet Home Alabama is probably a lot more famous to some people than anything Pink Floyd has ever done. The expose or general appeal of a song like Sweet Home Alabama is quite different compared to progressive or psychedelic rock. So while the average guitar player would probably rather own the black strat, that's not to say someone with too much money who really doesn't care about guitar itself or it's connection with a particular player, but rather just wants something with famous ties just for the pop culture connection, wouldn't rather have the Ed King strat. After all, it's on a song practically everybody knows, and that may be all that matters to some people.