Imagine you have 10 BTC and you automatically got your 10 BCH, should you sell your BCH of also hold for long term? If you sell them you have 2850 dollars
I think it will be a good idea to hold on on to the BCH, I have a feeling that it's value will be rising very soon and since you got it for free, I don't think that you will be losing anything if you hold on to it for a little longer and see how things go from there.