It is a store of value and like any store of value the expectation is that it will not evaporate. If you buy anything of value, metals, stocks etc whatever doesn't matter, if you buy shares in Google or a handful of diamond etc it doesn't matter, those stores of value are going to fluctuate in their overall worth, but you are never going to wake up one morning and have them disappeared. That would be theft/fraud. But in the cryptoworld I guess thats okay. There are a million examples of why this is important. What about the person who invests a little for their kids, backs up the wallet and puts it away in a safe or safety deposit box. So much for buy and hold! How about a person who has had a serious accident, like they were in a coma for a year and unable to check in every month.  You think their investment bank is going to tell them,  "oh sorry you didnt check your investment for a year so we just destroyed it".