I'm pretty sure that nano, eltetroneum and digibyte are old and dead coins and people have lost interest on it except litecoin. You should buy new coins like those that are launch in Binance by using the IEO success and one of them is the Harmony One and you just don't know it yet but the hype on this one is big.
yes I agree with your opinion, that some old coins that no longer have strong trade, maybe we should leave and move on to new coins that might come with a larger and fresher market outlook. EOS coins and some of the coins you mentioned are very popular now. even harmony is very hot before they are traded.