There is a certain amount of placebo effect. The way you feel about an instrument will affect the way you play it, reinforcing the way you feel about it.
I certainly remember back in the 80s that 70s Fenders were regarded with distain. They are now highly coveted, but back then most musicians wouldn't touch one with a barge pole. If it wasn't pre-CBS and all that...
I've never played a CS, and certainly wouldn't consider spuffing over £3k on one personally. I sold the US Standard Jazz I owned from new a few years ago. I never really gelled with it, yet the mate I sold it to loves it.
You pays your money and you takes your choice. I love my cheap as chips Squier. My other, much more expensive basses, hardly ever come out of their cases