It's perfectly possible, respectable individuals like the Xapo founder believe it so as well:
"In a video interview with the Wall Street Journal, Mr. Casares says hes not worried about bitcoins own volatility hampering its adoption though he expects significant volatility over the next few years. He predicts that in a decade, one bitcoin will be worth somewhere between half a million dollars to one million dollars."
http://blogs.wsj.com/digits/2014/04/02/bitcoin-price-to-1-million/Of course, the dumb ass average Joes that cannot think outside the box and consider any prediction like that as insane, will never make it. They will always find excuses "Oh he's heavily invested, oh this Bitcoin thing will crash". It's what they want to believe so they don't have the risk of buying and holding, and the ones that already have coins will not be able to resist the urge to sell when we are back to 1K or so. The people that is going to make it big within the next decade are only the 1%, which is what makes such a big price possible, because there will be a massive redistribution of Bitcoins in each bubble-burst cycle.