You make some good points too with money being transferable in some ways. This will be my opinion: I don’t think this kind of transfer would be game breaking either, but to me at least, Eridium is just different. How should I say this? Bigger tier currency would be the best description. If you would be able to buy the cosmetics for money instead of Eridium, that would be almost non-sense, because you can make millions of dollars in few hours, we all know that. I guess this is why they are tied to Eridium also. The slot machine in Sanctuary which requires Eridium, always drops something. Basically you can’t lose, even if you get 3 Eridium bars or a white class mod. It was really rare if I bought something from a vending machine, so I’m not 100% sure about this, but if I remember correctly, there weren’t purple anointed items in Marcus’ vending machine. If there were any, those were not too good (I remember green anointed guns only). Not like Earl’s vending machine, it’s always “packed”. So the first reason I think it’s not transferable (like I said earlier), is to keep you playing. Second reason might be, to yeah, go out there and grind for it, this is how we (GBX) made this game. Another reason would be to make you feel rewarded. I wouldn’t feel rewarded if I would go for a 2 hour farm and I could buy everything. But opposite of what I just said now, I wouldn’t mind that much if it would be transferable.