Of course, before investing money in cryptocurrencies, you need to assess the risks and know all the advantages and disadvantages of the market (coins) in which you are going to invest. I think its absolutely insane to borrow money to buy some coins, but some people still dont understand it.
Bitcoin is good and rational investment choice. This is evidenced by the soaring price of bitcoin at the end of December 2017 which was almost USD 20,000. Many investors enjoy large profits, thus triggering people to invest. Some even debt capital or sell property for investment. That's stupid, because bitcoin is very volatile. So it must be understood that investment must use capital that is not used, it is mean cold money