Peercoin is the cryptocurrency that introduced proof of stake, that proved to be a successful idea. One may think that it would be the most successful proof of stake coin, because it has time to its advantage, but it tends to rank around 11 or 10 in market capitalization. Why?. What do you think of Peercoin? Why are you using or not using it?.
Share your thoughts.
Because there are better cryptos now. We're not all driving original Ford Model T's now are we?
Ironically, yes, we are, and it is something older and less technologically advanced (If that is what you mean by better) than Peercoin: Bitcoin (the Model T of cryptocurrencies) is by far the most popular cryptocurrency and the topic of this forum.
Also, your analogy is flawed because network effects don't affect cars nearly as much as they affect currencies.
Network effect doesn't just happen because something is a currency. There's a threshold. Bitcoin is really the only coin to have even arguably crossed a threshold in terms of adoption which leads to a sustainably self-fulfilling network effect.
The alt-space is totally different. ALL alts are effectively penny-ante experiments; tiny projects, such that any lead can easily be squashed by the next guy. Fundamentally, this is why the alt space is an embarrassing mess as far as "investment" goes.