There are some previous threads on this subject that you may want to check out if you haven't already. Inevitably though any answers to a question like this are always subjective. I can't speak to Kind of Blue on vinyl, but when it comes to releases on CD, I suspect they all leave something to be desired. I just purchased the $40 K2 HD reissue and to my ears it is better than the redbook versions I've heard, but not enough better to warrant its price. Although I prefer the trumpet and saxophone sound on the K2 HD compared to my redbook version, I was surprised to hear background hiss on the K2 that is not present on my redbook version. Go figure. Incidentally, Mobile Fidelity plans to put out an SACD. I wonder now if I should have waited to try that one.
