Of course we need bitcoin, who doesn't? Although the importance depends on the user, in some parts of the  world where there's no restrictions on the use of bitcoin it is been used for payment purposes, why some use it as a form of investment, imagine buying it at $300+ when it dipped earlier this year and selling it at the current price right now which is $13,000+ and its still showing no sign of slowing down, it is undoubtedly one of the best investment one can make nowadays, just buy more bitcoin  .