Just hold onto 50btc. 1 block. 1/420,000. Then if bitcoin lifts off, you're rich.
I have more and I will hold them for the next 20 years. Because I belive.
But what will happen to the random guy that invested more than he can lose @ 20$? A lot of people will be hurted by this bubble, this is why I don't want to invest now and I call myself out.