I agree that having used versions of high grade augmentations doesn't sit well, to my mind, with the spirit of the rules. Used isn't presented as a modifier broadly applicable but as another grade with costs based on standard, like all other grades.
But beyond RAW and RAI, it makes perfect sense to me, within the metaphysics of the game, that no matter how good the chrome was when somebody put it in their body, ripping it out of them and sticking it in your bits is bad for your soul. You're not just stripping yourself of humanity for hollow and artificial substitutes, it's somebody else's hollow and artificial substitutes. For all intents and physical purposes, used deltaware might work and it might be full of all those fancy deltaware physical components, but metaphysically the fact it's used trumps how it's made.