Guide to whether or not you should invest in bitcoin for 2019. Bitcoin a long time ago was an amazing investment, and made people millions. However since the begining of 2019 all cryptocurrencies including bitcoin have taken a significant hit. The transaction cost, and transfer time has made bitcoin almost useless, while at the same time other cryptocurrencies have become more capable than bitcoin. While the market is still speculative, in my personal opinion investing in bitcoin for 2019 would be a mistake.