This is very true though not only for bitcoin. Bitcoin has grown up from where it is on 2010 but I see it as normal event because if you will be comparing it to flat money, if you invested thousand flat money in the late 1900's it will also be worth millions today. The difference is bitcoin's growth rate is faster than any other currency of flat money in the world I presume. Why? because I started to earn bitcoins a month ago and its value is about $2700 and as you can see today it is about $4000. I really wish that I invested much earlier to bitcoin so that I can earn much profit without doing anything but waiting for its price to grow up. The power of bitcoin continuously amaze me in every aspect.