I personally think a floor of $20,000 a bitcoin is a reasonable place for bitcoin to hit in the next 5 years and it's very doubtful it will go under that in th future. Of course if you listen to John McAfee he's saying $500,000 each by 2020 or he'll eat his own dick on live TV! personally I like his enthusiasm but I got the feeling he's going to be eating a bloody Hotdog/Vienna sausage on a plate.