Well my opinion is, that Cryptocurrencies have Zero real value and that their value is the result of the energy.hardware wasted cost. When People buy a crypto with PoW what actually does to to pay the bills for the electricity and the hardware  + the interest of a miner. So actually a Crypto currency is just waste!

On the other hand ICOs which are real and good are more like shares to a real project.

So in longterm when people understand what Bitcoin really is, what all this cryptos really are, will start to invest to ICOs and the economy will turn a token economy and everybody will use ICOs..
At the moment , is easier to use bitcoin , dash, ethereum etc..