You might want to look into Arbitrages with other commodities such as Silver Bullion.  
For instance:
  Silver is at an all time low $28 USD for the moment while BTC is at an all time high of $105 USD.
Now If you own bitcoins right now:  Sell BTC and Buy Silver with it.  In a few weeks...the cycle WILL REVERSE!  This is when you Short Silver and Buy BTC back when it's less than $105.  Wash. Rinse.  Repeat.
I'm planning to start a Silver/BTC Hedge fund on BTCJam.com soon as my credentials are verified.  I plan on borrowing 20 BTC and will payout 5% interest.  I'm interested in a 90 day loan but plan on paying off my investors much sooner!  I plan on looking for a few BTC investors.  I use the same nickname at BTCJam as I do here...so I'll keep ya posted fer those who are interested in Silver/BTC Arbitrages.  I will take the risk(my credit is on the line as well) while you BTC investors will earn an easy 5% return on investment.

https://sites.google.com/site/bitcoinsky/si-btc-hedge-fund