I think this is the best time to buy Altcoins,
However, you should always visit the market and try to buy at the lowest price.
This will reduce the risk.
I am a cryptocurrency lover, holding the cryptocurrency by visiting the market all the time.
Buying them at dips is always good because definitely there is a good chance for the altcoins to recover their prices easily. Only the problem with the current market Bitcoin fluctuations and other new coins launching their IEO in the major exchanges. Most of the volume goes to new coin and this will definitely influence on old coins.