That reminds me of what I read about how Warren Buffett thinks about gold [1]. His point is essentially that if you invest in gold, your return depends on the price swings until you get out, and nothing else. This is in contrast to investing in assets that actually produce something (e.g. pay dividend). I see bitcoin being very similar to gold in this respect.
[1] http://business.time.com/2012/02/27/warren-buffett-on-succes...