No one needs your holier than thou nonsense. I've been following Bitcoin since 2013, so trust me, I know what it is. During that same period of time I've seen it drop from more than 90% market share to just over 30%. Moreover, I agree with you that most people buy coins for the wrong reasons. That being said, it's foolish to blindly assume that Bitcoin will end up being the dominant cryptocurrency just because it was the first to become popular. Cryptocurrency is a revolutionary invention, but it remains to be seen in what way it will ultimately succeed. Personally, I have the majority of my holdings in BTC, however, I hold a non trivial number of alternative cryptocurrencies that have similar aspects (decentralized, mineable). Many of the coins being created recently have little to no use, yet receive hundreds of millions of dollars in investment from people hoping to get rich. Responsible third parties could prevent this from happening on such a large scale if they allocated these funds more efficiently by doing exactly what you said: looking at what service a coin provides/problem it solves, not looking at the potential profit from doing so.