In my opinion, the new crypto currencies are starting to be just a speculation tool, and I do not think that is something wrong, but if no one is using those currencies to make the real transaction the real value is nothing...
It happened with the bubble of the internet (.com) with the houses in Spain, and of course with many other bubbles in the history, of course, the crypto currencies are part of future, but not all of them, we won't use 1000 cryptocurrencies in the case of Bitcoin and Ethereum they are used by the people because the added something new in the market, a new idea, and no one is going to use other cryptocurrencies which do the same than other before, think it like that if I have Tezos and it does the same Ethereum does you would rather use Ethereum just because more people know it already and the user will not change because they already know that technology.
that is just my point of view, you can see what happened with other currencies did not add anything new like dogecoin for example.