Yea bitcoin is best investment now but only for higher amount of investments but for lower amount of money it isnt.There are more better investments like matrix sites which dont requied to advertise to earn a lot of money.There are also better investments like revenue share sites which pay 150% roi or less or hyip site with 150% roi so it is better to invest for short term in 1 hyip site or revenue sjare with higher roi then in bitcoin because bitcoin price is goin up but very slow so it is not really profitable to keep bitcoin only in bitcoin wallet better invest and earn much more witohout any hardwork.I prefer bitkonan wallet to keep bitcoins to grow because you can withdrawal your money directly to your bank account.