Just wait until the bitcoin miners reach the point where they realise they won't get a ROI on their mining hardware with the increasing difficulty, which came to realisation a few weeks ago. They have begun hoarding when it is mathematically impossible to get a ROI. Less coins on exchanges over peroid of 1stJAN-March31st creates artificial scarcity. Around this point or after you will see a huge price hike, to a price where people who got in the game past 3-4 months are able to receive their ROI, which is at least 2x current price. The subsequent increase in price will attract a wave of media attention and more pyramid blocks will come to buy-in. Greed is the self regulating factor from mining manufacturers who are mining with the hardware as it comes off the production line. The pyramid will continue folks!
That's a very interesting thought, and even if it isn't the entire reason for rising price, it still could be a (big?) part of it. I guess we will se if you are right in March/April.
Let's do some maths - how many BTC will be held by the miners at the end of March (I know nothing about mining)?
Also, how do you get to the date of March 31st? And are you saying it hasn't been profitable to sell since Jan 1st, so that's why miners have been hoarding from then on?