Seems like an unanswerable question. I will say that I got my used Billy Bags rack, that cost 4 digits new, for 3 digits. So there's that. I'll add that even though I truly heard an immediate (and unexpected) improvement in overall sound quality when I installed the rack, I still have brass tiptoes, sorbathane pucks, and various other sundries sprinkled throughout the system! Also, although I'm currently living in an apt. with concrete floors, prior to this I lived in a house where my rig was on the 2nd level which had wood floors (carpeted). The rig definitely sounds better in the apt!
