So, there is currently 1 use for salvage, which is upgrading gear(and changing looks but you rarely use those) so I currently have about 90,000 salvage just sitting there being useless. It would be a good idea to make packs purchasable with salvage(maybe like 1500 for premium pack) so players can actually use what they have too much of.
or, introduce a crafting system so you can craft specific gear with salvage.