I have considered alternate cryptocurrencies to be mostly a waste of time and energy. Sure, there may be some new innovation here and there, but if it becomes a true problem, then that innovation could be added to Bitcoin. Also, I have felt that alternate cryptos might have a small market for special needs, like total anonymity. Regardless, I have felt that the altcoin market should be only about 1-5% of the Bitcoin market.
But alternative cryptocurrencies have two major functions ...
It's necessary to clearly distinguish between electronic currencies and crypto Currencies.
Does a crypto currency necessarily involve a blockchain?
Is an electronic currency not cryptographically secured?