http://blogs.wsj.com/digits/2014/04/02/bitcoin-price-to-1-million/The guy from Xapo predicts 500 to 1 MM. I can definitely wait 10 years for that and be a happy man. I hope he is right, and his prediction is accurate. One doesn't make such predictions unless you aren't 100 convinced that it will happen, because making wrong predictions hurts your business and he has a Bitcoin business.
usually reasonable predictions have a 50% chance of getting right. but the price you are waiting for within 10 years is beyond reasonable and will never happen.