They haven't proven anything yet. In this space hidden gems can just as easily become hidden dump holes since utility doesn't matter. I know enough coins with pretty decent utility that actually deserve to be up higher in the overall list, but they don't get any serious exposure because the hype only concerns a few top coins. What other than the listed coins have proven to be worthwhile according to you? In my opinion Monero has been decent, Byteball and Digibyte. These coins however won't ever be able to climb up the crypto ladder due to how this space works. Bitcoin and Ethereum will probably be the only main coins....