Dear @gokulnk, i am very appreciating your contribution with this article and with your setting of bounty. Your post is very detailed and you explain exactly that over BTC, the rest are shitcoins! Yes, is sad but is true, how it possible that over 1700 coins are below 50% of total value? Because BTC is like the gold in stock exchange market, the value is keeped by whales which have already invested billion dollars, the rest are coins based on good ideas but without economic support, so just when there is bear market, all go to BTC or exchange shitcoins to fiat money.
Lets hope that 2018 will end like 2017, but i am worry will be not, i already lissen too many specialist forecast always mistaken...:(((