I believe that people start up cyrptocurrencies because they either want to make some money or maybe experiment with the internet. It's basically like when a scientist test run a new gadget. It still is amazing how these cryptocurrencies live though. What do you think?
It's amazing how these coins succeed but their success doesn't last long because if the devs and the team have as a goal to get rich as fast as possible.
Sometimes good projects (or probably most of the time) they doesn't succeed in the first months but gradually in the first/second year we see a light and a gradually increase and this means that these coins are being stable while increasing.