new bitcoins till 2020 are about 5 million. Assuming that profit margins from mining are >50% on an average basis (i.e. the purchasing power growth of the bitcoin correlates to hash power growth ) we're looking at about 2.5 million bitcoin net profit. Since IT industries are usually dominated by a handful of players, the expected long term profit per player is around 0.5 million, which puts AM well above 1.

And that ignores potential armsrace, defensive mining, escalation of fees, hardware replacement and cryptographic mining tech taking over other industries, like notary services or stock/ownership tracking.

If all you do is own bitcoin, you don't get any exposure to these potential outcomes.