I think this is a good point to make. Tokens and coins are like stocks. In the long run there will be many more. But I think that the ones that will be listed on various (hopefully high level) exchanges will be the ones that have some utility.

BTC is clearly a great store of value. It will continue to be so. Ether is great at smart contracts. As I have been reading recently TRON is secretly becoming the basis of contracts too. STEEM has been (?) the basis of social networking. If course this is just the beginning there is more to come. We see XRP looking like it's in it's last throes. I guess this proves that the ecosystem is active.