Those previous forks had really got me buying a lot of coins and that is one of the few situations I buy altcoins. It is just simple, buy it when it is low but it's much better if it is on its extremely low price.
Except there is a situation causing the extremely low price and the market activity is showing a lot of dumps, it is always better to wait very well for the activities to subside before getting in as that would really give one the best shot of getting in at the right time.
It is still always better to be on the watch out for the news as some coins always get dumped due to some negative reasons and you would not want to be a bagholder of a shitcoin, thinking you are getting at the right value.