The question is what is money, it's a medium of exchange. in that terms bitcoin is money, but not a good one, money should be cheap to transfer, its seems like bitcoin is no longer cheap. Money should keep their value too, bitcoin is to volatile to act like money atm.
I agree that it's too volatile to use like an atm. Maybe we could label it as a commodity? But since it's being traded, bought and sold the best way i can describe it is either a commodity or vehicle to transfer value.