Not much incentive to crafting

With the upcoming Expedition I've been looking for ways to maximize the value of my inventory. I've been trying all sorts of different crafting combinations, but everything seems to have been calculated so the crafted item is worth less than it's component parts. Upgrades as well, you're ultimately better off just selling the resources instead of crafting a gun. That sort of makes crafting pointless, particularly when the free guns are considered meta. I feel like a few canisters, heavy gun parts, and advanced mechanical components should be worth less than a functioning Bettina (okay, maybe a bad example but you know what I mean). I wasn't doing a lot of crafting unless I really needed something, but now I'm avoiding it at all costs.