Here is some easy to visualize math.  There are almost 8 Billion people (7.6 as of Oct) in the world, but lets keep it simple and stay with 8 Billion.  Bitcoin is all over the news here and frankly across the globe.  With BTC gaining in use and popularity its way beyond reasonable the 2 1/2 percent of the world's population will want to get their hands on BTC.  Really, its tough to imagine only 2 1/2 percent will want to pursue getting BTC.  Again, for simplicity lets stay there and say that percentage of people are going to be "hell bent" on getting BTC.  What would that look like?

Here is the math on that scenario:  8,000,000,000 people X 0.025 (2 1/2percent) = 200,000,000 people hell bent on getting coins.  Now continue the obvious logic.  There are about 17,000,000.00 coins in circulation and over 11 times as many folks that want one (remember "hell bent").  Further; whales are sitting on large wallets anticipating their coins are going up in value way better than fiat investments.  The ONLY thing that will pry some of those coins from such wallets is BIG MONEY per coin.  And let me stress that the assumption of only 2 1/2 percent of the population wanting BTC is going to be absurdly low in a few years.