I'd agree on the shells, but the difference between cheap symbols and slightly more expensive ones can be like chalk & cheese.
Not saying that the really top end cymbals should cost what they do. I suspect they're taking the piss a bit, or is it the normal diminishing returns thing.
EDIT: Having said that I have an (1890s) anglo concertina that would be considered top the range, or near. The sound, feel, action and response are tremendous, and I wouldn't sell it. One that cost half as much wouldn't be the same, but would (should) be a perfectly playable instrument.