Never been an issue for me until now. And not so much because of re-rolling. I burned 80% of them upgrading all my weapons. I also pick up green engrams but for whatever reason at least 3 out of 4 are armor engrams - just adding to my huge stockpile of nearly worthless armor parts. Trivial items shouldn't be an issue after playing a game for 9 months solid IMO. If the gunsmith will sell me guns why not sell me parts? Say 20 for 1500 glimmer. I'm willing to grind for glimmer. Grinding for weapon parts is too random. Signed.