The volatility of the Bitcoins makes it highly profitable just like now. However, if the prices goes stable, many stores will finally accept Bitcoins as their mode of payment, just like what it's inventor intended to create. A digital currency.
But for me it won't be as popular as it is now cause people are trying to invest, even a small amount in bitcoin and wait for it pump what is more they are telling this to friends and this is how bitcoin is getting popular.