If someone is willing to pay that price, then that's what it is worth to them, simple as that. That's what market is there for.
As hinted by "price" != "worth," price and value ("worth") have specific economic meanings. A quick search will give you the Econ 101 explanation of these terms, so you can understand the difference:
I'm not going to argue terms with you, I'm not an economist. But I do hope that rwaksmunski also harumphs the term "net worth" when used by more respectable publications than cited cryptoslate.com, because I would argue "worth" of bitcoin is closer to money in whichever sense of the word than "net worth" is when usually mentioned.