Scavengers really could have used a money sink mechanic.

I kinda envision it like the "legend" skill tree in Dying light. In that game, once you maxed out your character, you could keep leveling and pumping skill points into very small buffs.

Or something like the Badass rank system from Borderlands 2.

I'm talking minimally invasive upgrades that take up a lot of cash to purchase. Maybe a $1000 for one?

And I feel like the guns that spawn in the world could have had some slight stat changes, buffs or debuffs. Kinda like in Prey: Mooncrash.