I think it's not very tough to earn million with bitcoin. I wish i had bought 1000btc in back 2011 and if had done that in 2011 then now the world would see me as billionaire. but unfortunately i hadn't doge this so I can't become billionaire with bitcoin now.
Well you can say that it is not tough to become a millionaire in bitcoin if you are going to back to the past. But the reality is we are already in year 2016 and 2017 is coming so let's just move on. Because if you are going to keep on coming back to the past that is not going to help you to reach your goal to become a millionaire soon.
If you bought 5,000 bitcoin 5 years ago, you are already multi millionaire. But not many people are so brave.