I am saving it for future and also investing it in trading where I can generate regular profits and right now I don't see any good reason to spend it or sell it unless you are in need of a money and I will surely not spend it on gambling or shopping as saving will give me best profits in future.
I am saving my bitcoins because day by day bitcoin currency rate is increasing and because of the best policies offered by the bitcoin system I am not afraid of any loss because its only gain when its about bitcoin . And bitcoin is only the legal and beneficial crypto currency over the world so I am also using it in my business because its safe to use because no one can steal your bitcoin because everything remains in your hand thats why I am saving bitcoin and soon I will be millionaire.