For those too worried about the price, here goes an incomplete history of Bitcoin crashes. It doesn't include the biggest one. I'm not saying this is what will happen to us, I'm just saying that cryptos are volatile and watching the price all the time isn't good.
http://www.forbes.com/sites/timothylee/2013/04/11/an-illustrated-history-of-bitcoin-crashes/
http://www.forbes.com/sites/timothylee/2013/04/11/an-illustrated-history-of-bitcoin-crashes/