It can't be said whether its for rich only, It also belongs to those who are ready to take high amount of risk as nobody knows what would be the future of the currency. It is just regularization period post which it would be available for everyone that is what i think 
no i also do not think that bitcoin is for the rich people only. i think even the poor peole have the opporutnites to use and invest money in bitcoin to make more and more money. if poor peole cannot afford to burchase a good amount of bitcon even then they have good chances to invest thier little amount in trading cheep altcoin and get opporutinties to makeing more money even by investing a small amount of money.