BTC transaction fees remain high. ETH has got clogged with kitties. Even ETH transaction cost is touching double digits. As I posted a few days back when LTC touched $100, the time is almost here for alternate cryptocurrencies to get attention.
Remember, Apple did not make first smartphone but they are number 1 and expected to remain so till smartphones die their natural death. Similarly, bitcoin may not be the digital currency that remains on top. It may become Nokia and Blackberry of the world and give way to altcoins. Which altcoin will it be? It is anybody's guess.
But I still love Litecoin and Dash in the space and converting some of my BTC profits into these altcoins. If nothing else, it is a good hedge against BTC crashing too fast when futures come. There are no futures planned for Litecoin or Dash. So nobody can short them.