Well - he would wouldn't he... True Spartans hold, apparently... http://mashable.com/2013/12/16/cameron-winklevoss-bitcoin/
I was just about to post this link... Bitcoins could even go to zero. They might as well go anywhere... I even heard "predictions" of Bitcoin hitting 500,000 $. It has no backing, it has no intrinsic value, but would have been a fantastic speculative asset. Until someone takes it from you, it's good... otherwise, it's rather unpredictable. Then again: what if governments start banning Bitcoin usage/trading like Thailand, China... what if the US and the EU will follow? Then, I guess almost no-one will ever want to waste their fiat money on cryptocurrencies... It might be fun trading, so long you can transform the cryptocurrencies into fiat money.