Even if the price doubles(which for sure maybe will not happen)
There is no such a good profit just for 1BTC if you think for long-term.
At least 100BTC will make a good change(profit) in the next few years.
There ain't too many folks with $25,000 or so to park on an extreme bet for the future. Overall though you're right. One coin is unlikely to be life changing before you're back in nappies.
Well the higher the amount needed the higher the risk.
And there are less people with this kind of cash money to invest in.
But in generally 1
BTC is just too little to except a good profit.
May be 1 BTC is a very little but if you ready to wait for more time like till your retirement then bitcoin would be best investment.