I also suggest to invest in Bitcoin first as if the market will go to high then first of all the price of Bitcoin will go high after that the price of other coins will follow. I often do that I invest in Bitcoin and when the remaining coins start to increase then I put my money to there.
This is a temporary fall in the market value of Bitcoin and you guys will see a sudden jump in the values again. The average rise in the values of Bitcoin is always more than the fall so just wait and watch the drama.