well i have invested and bought 4 bitcoins now and so i hope 4 bitcoins should be enough to make you pretty rich in the next 10 years.
But actually my aim is to collect 10 bitcoins for now.
Keep accumulating the more the best for you and your family when the sheep finally wake up there is going to be a massive rush for bitcoin and then they are going to realize they are going to have to pay big prices for a single bitcoin.