If you believe in the potential of Bitcoin and appreciate the advice of experts, you should not be too worried when the price of Bitcoin down but the fun again right. At reduced prices you can use cash to buy more at cheaper rates.
'Experts' Lol! Can you name these clowns? All I see is bunch of retards speculating shit. Articles telling the price will be 100k in 2018, And yesterday it went to 40k, next will be 5k. Maybe all these experts that are saying $40k-$100k all bought in at $19k and are hoping they can get enough people in to pump the price so that they can get out.
I do agree that if you enough cash that you are ready to loose then go for the coins you think will be the ones mooning in 2018. It need not be only Bitcoin. Do your own research and put your money where you believe it will be the best.