Hi there cgatx! As of the current year the price increases at near 1,400%, last year its only 79%, if the trend increases a 15k price could easily reach 2M a coin. But if the market go sluggish like the previous year it could still reach around 50k. However, there are so many factors to consider when predicting the bitcoin price, most of all is the people emotions who could be driven enough to buy more bitcoins or in doubt and think the market could collapse ending to dumping of all possession which could trigger a price drop.