If we could track its price since the day it was created, it is pretty obvious to see that Bitcoin's price keeps growing and moving up every year.
There is no need to have a question of its market capability coz it is already been there and people have already noticed it.

For the fact that Bitcoin is the leading coin in the market, people will come to it and I know they'll never think of regrets because they can't and they believe that Bitcoin could be more valuable in the future and gain more profit by then more than to have in local investment.