Although Bitcoin has taken up 40% the coin market. But is it more worthy to invest in bitcoin? Since bitcoin can never replace the paper currency for the moment due to many complicated reasons, and most bitcoins are already acquired by a small sum of people. So if a kind of currency can't be circulated, what's the meaning of that coin. When it comes to ICO, and the release of altcoin, it means that you are investing in a company, you are holding equity in the company. If you think this company will have a bright future, it's always worthy to put your money in.
Altcoin is better than Bitcoin because it is cheaper to purchase for an investments than Bitcoin but still Bitcoin is the most promising among crypto currencies investments because it doesn't need commodities to promote just to become stable but its just already build a deep foundation of trust among the people. Bitcoin cannot be a legal tender because not all people know how Bitcoin will work therefore it should be use as investment only to earn more fiat for our future spending.