How safe is it?
It is pretty safe but it is all going to depend on how much 1 Bitcoin is going to be worth because with only one Bitcoin you should not expect to become rich.
If you want to make some decent money with Bitcoin you should handle in allot more.
also it's depending when you buy it, in high rate or in lowest rate.
i think 1bitcoin can't make you rich, maybe if you save or holding 1000bitcoin it's can make you rich with it.