I am still waiting for perfect altcoin, that
1) doesn't wait for to block to be mined in order to confirm tx, and therefore has truly instant transactions
2) has some sustainable retention policy, instead of keeping things in ever growing blockchain forever
3) with incentives to nodes, not just miners
4) with privacy similar to Monero
5) with functionality similar to ETH, but with ability to fix bugs in that functionality
Once it is out there, I will buy it.