I have a pre lock 586-5 L-comp, and a 19 K-comp, as well as some performance center semi auto's.
I would opine that the answer to your question is "it depends".
It depends on when the model in question was made, as well as whether the unique features enhance the gun for your intended purpose.
My 19 K-comp is a very nice revolver. I'm in it for about $750. The trigger and accuracy are not as nice, or good, as my standard 19-4 which I have $200 in. The K-comp looks unusual and is a conversation piece at my local range. I would not carry it though, and if I was looking for a self defense or competition revolver, would seek out a nice 19 and have my smith slick it up.
The 586 L-comp is a superb, accurate revolver with the nicest trigger I've ever squeezed. I've been offered stupid amounts of money for it, and it is not for sale. I only have $425 in it, and it is some of the best gun money I ever spent. I think some of the pre 2000 year Performance Center handguns MAY be worth their asking prices but it is largely up to the purchaser.
In the interest of full disclosure, I despise the current production S&W revolvers. I think it is ridiculous in the extreme to pay the asking prices for their Performance Center guns, as they all have that idiotic lock, ugly frame redesign to incorporate the lock, and the same poor QA/QC.
The designs hold no appeal either, to me. Why a port on a PC model 67 38? I can buy a nice model 67 from J&G for around $239. Why on earth would I pay over $1000 for a ported model 67 with a coating that wears rather quickly, and a stupid lock that renders it unsuitable for serious purpose? Makes no sense to me, YMMV. Good luck! TJ