Funny story... back in 2011, I had 31 BTC stored at the exchange TradeHill. That site went down and left a very bitter taste in my mouth. But, in early 2013 I finally received all my BTC back, and by then the price was almost 10 times higher than when I "lost" them. Who knows, I might have panic-sold them for $25 each if they hadn't been in lock-down. So, maybe this will be turn out to be a similar situation!
(...or not, but better to be optimistic than to be saying FML constantly, right?)