You're selling weapon parts. Why not armor materials? The grind gets old after awhile.
-
Personally, I have no need for armor materials. As long as I can remember, in Destiny I always break unnecessary stuff (engrams drop for armor with about 80 percent more often than for weapons). But I also understand that for those who played a comparatively short time it could be a problem (when not all the desired sets of armor obtained, and materials terribly lacks). I'm not against the sale of all materials, it would be logical.