Altcoins that have the same functionality do need to be selected, so that will provide intense competition in the development of altcoin in the future especially both from the features and marketing. Maybe this time ethereum still can not be rivaled by some competitors like NEO and Waves, but did not rule out the future NEO and Waves will rival Ethereum. as well as altcoin like XCP with STR, DCR with XMR and so on.