I use bitcoin as currency and i never sell my bitcoin, but i prefer to use bitcoin when price is rising
So, how about you?
I can say i use it as both curriency and investment because i use bitcoin un many different ways one of that is to pay in service whenever i hire people online when i need the job easy to be done its easy to transact with bitcoin and less fee and hassle, also i use bitcoin in investment because i want to earn more bitcoin so i have big profit in return i invest it in risky new hyips but i do earn and run and if the site is new well i invest then never invest back, and also in tradings well i do tradings and earn big money with it.