http://www.washingtonpost.com/blogs/wonkblog/wp/2013/04/23/americas-2-trillion-shadow-economy-is-the-recessions-big-winner/
If it captures 1% of that $2T, it is equivalent to $20B, which would put ETH somewhere around $150. Those who sell for $2 will shit bricks, eat sand and may even commit suicide in the years to come. If it captures 10% of that ETH will be $1500. I know it sounds crazy, but so did the Internet in 1995.
Once it's launched their main focus will be on scalability, which I think is the real reason crypto is not ready for mainstream. Once they can handle 100K TPS (and I'm sure they will), it's game over.
like if we do business in crypto currency problems that movements are very fluctuating and significant then we also have to work on a job that is certain even though the income is not too promising at least we have no handle in economic problems if the work on the currency cryto is harming us tomorrow. so we will feel calm and avoid the things we do not want before. game will resume.