I suggest you to save it , you can make alot of money , BTC price seems to grow and grow and its stable
, Or you can do altcoin trading , 1.5BTC is great for altcoin , but you need to be smart and earn knowledge about altcoin.
store and trade it is a good idea. you can do the division 50% to trade altcoin and 50% for the save.
you can benefit in both? store can make a profit when prices rise bitcoin and you can profit from trading altcoin ?