It's a good time to buy more because the prices are low. Just like the basic rule in the stock market investing, buy low and sell high. Another strategy is to keep on buying even if the market is up or down. If we do the averaging later we will find out that we still earned higher.
If we compare last year's situation with the highest level of prices and with the hopes for profit that we expect, then we have all the chances to buy a crypto currency at a cheap price. Today is exactly the time that we need to use.