Bitcoin has it's lowest price of all time, this is the right time to buy bitcoin because bitcoin market is down and in the end of 2018 bitcoin will touch 20k$ above again....!!
We all know that in the past few days, the price of the currency fell a lot, no one knows whether the currency will fall again, we can't predict the currency price in the future, so we need to make a choice, if you think the price of the currency will continue to fall, so you can choose to wait. If you think bitcoin is about to hit bottom, it's a good time to invest.