This year; ieo unfolded.
It was supposed to surpass ico and be a better crowdfunding method; but it has gone cold faster than ico did.
If you compare Your experiences too; between altcoin and bitcoin; you would notice that
1. Altcoins are so many; that they replace one another.
If an old altcoin dies
New altcoins will replace them and old one will be forgotten... It goes on and on
2. Bitcoin has maintained its class and importance;
Is it that bitcoin is the only hope for the future ??
Many old altcoins have died because of the lack of consistency from the developer team. I think there are some altcoins in which the developer team has the consistency to develop platforms like ethereum. Bitcoin is number one in the cryptocurrency market today because of investor confidence, it is possible that in the future there will be an altcoin that can compete with bitcoin in terms of market cap value or price