based on the data on average a BasicCopper kit gives 1 . 62 Dust , and a MasterSilver kit gives 1 . 85 dust . To use the salvageomatic kit values , a copper salvage costs 3 copper , and a silver salvage is 60 copper . That means you pay an extra 57 copper for an extra . 23 dust . Crystalline Dust currently sells for about 19 silver , or 1900 copper . That means the . 23 extra dust is worth 437 copper , more than the cost to acquire it . If I had to guess , what likely happens is people just look at to average cost per copper , and not the difference . If you just look at average , copperfed gives you 1 . 62 3 0 . 54 Dust per copper , which waaay better than the 1 . 85 60 . 03 Dust per copper from the salvagefed . But It ' s not just the efficiency you care about .