Bitcoin price has dropped significantly since beginning of 2018. This is an opportunity to buy bitcoins and sell later as expects project the price to hit $20,000 late this year.
Right now it's standing at 6700 USD and seeing the last year flight of BTC from 1000 USD to 20,000 USD, current price seems ideal for investment. BTC is a digital asset and its price will surely go up in coming days but no one can predict precisely that when it will go up and up to what extent it will go up.