So I'm not giving any financial advice to anyone you should always think about your personal situation and make sure you make the right choices for you.
Having said that, I like to buy low, and sell high. When STEEM dropped this week I purchased $2000 and put all of it on my steemit account. I feel this is a smart investment for me. Prices are low, so this might be a good time to get in. Yet always keep in mind prices can get lower even.