Personally, I think the whole point of running a mysterious shop that appears out of nowhere is to sell magic items. Steampunk gadgets are good... but they really aren't the same as selling enchanted golems, devils in bottles, tiny furry creatures you shouldn't feed after midnight, or wheels of cheese that restore themselves whole after a piece is cut off.
Granted, I would really love to play as some kind of devil, imp, genie, or fey creature running a magic shop in the modern times to mess with people, but I don't see those as options.
I mean the modern day options might sort of imply magic supernatural stuff in a way I don't see... but yeah. I don't see any magic stuff in those options.
Sure we're currently in some kind of magic dimension or whatever, but even then I think having a background of knowing about magic stuff would be the most useful.