That can get real gross real fast though. Once there's any sort of conversion, how do you not automatically think "oh; so an hour of my time is worth $X to you, huh?".
I don't (personally) think it's an automatically-bad idea, but I'd be really really cautious. Credits are "pure" right now, but once it becomes "I could unlock the Flatline! ...or save up more for this $2 hat... and I don't want to be a sucker..." a lot of warning lights go up in my head.
These are all cosmetics; remember. Would be a much different conversation if this was gating-off access to gameplay. Because ewe.
Holiday retailer sales are not the game "cratering". Hold your fire.
I support the way you guys are doing it. Strictly keeping everything separate. Also, any chance of Titan OS voices coming ?