I sold EarthCoin yesterday with a 1000% gain from 2 years ago
![Grin](https://bitcointalk.org/Smileys/default/grin.gif)
-The coin was dead for the whole time-
To answer the question: Getting bitcoin is more expensive than creating (and consequently getting) an altcoin
Economics of supply and demand
Since these are self-propelling game theory incentivized mechanisms, some of them will exist longer than any of us
Tech is usually not a scam, but the hype around them always is