If you got the RSD box set from a few years ago I believe they actually used nice tip-on jackets for those. But yeah the standard releases are flimsy standard stock.
I have the KG self-titled and I thought it sounded better than the VMP. I didn't have the KG Sweet Revenge so I decided to pick up the VMP and it's not bad, but I could see how the KG could be better at bringing the band more forward in the speakers like he did on the S/T. the RKS cuts seem to put more emphasis on the vocals and it's a bit brighter than it should be.