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.