The price is cheap now but I am expecting more price dip for this alt before the fork. For long-term investment or trading it is a good time to buy some and wait for few weeks after the fork to trade at own risk. And when btc price becomes stagnant prepare for another dip.
I would purchase Litecoin somewhere in a month or so if I still want the coin. The price would have to be really low in order for me to invest in it.