Knowing bitcoin is already getting its space over the wolrd, we dont know how long it will take to be accepted from big companies, merchants and countries, but this will happen.
More companies are already accepting it. The latest I read is from KimDotCom,to be launch on 2017. Bitcoin is becoming mainstream and as many company accepting or utilizing it, I am optimistic that the price will follow.
It can not be mainstream its always the best to be called it as the best alternative. like paypal.
We know more and more companies are accepting bitcoins right now but there some site still not like amazon..