So the market has grown insanely since the Bitcoin Hard Fork. Since Bitcoin Cash became available. I want to point out one of the dangers for Bitcoin. The 51% Attack. If someone or a group has 51% of the mining power they can 'doubled-spend' there coins because of wrong confirmation of legitimate transfers. In Bitcoin the value has risen to such a high point that it is almost impossible (very unlikely) to happen. In Bitcoin Cash tho, We don't know who is mining it and it is certainly a new area for miners. I think the missing trust in Bitcoin Cash and the uncertainty is holding its price back. Im betting my money on Bitcoin Core.
A cryptocurrency needs two things to survive and grow. Community and good tech. The reason Bitcoin is #1 is community. Bitcoin cash doesn't have the community and is just another altcoin. I rather buy Litecoin then.