Bitcoin cash is not what we needed at this point in time. They set their fork date just around the segwit locking, just to create chaos in the market (because most traders may not even know what this august 1 thing is about).
On the other hand, all the hodlers had their bitcoins either in their local wallets or cold storages. And they really don't want to give away their private keys in order to gain, like what, 5-10% of additional value in the fake bitcoin. So only those bitcoins from a few exchanges, were rewarded with fake bitcoin cash.
There were sooo very few bitcoin cash in trading circulation, that they kept increasing the asking price. And people bought it, thinking its another bitcoin (but cheap one). That is why, my understanding, the price went up.
Recently a lot of coinbcase accounts were made. This August 1 August 1 fiasco has been up on the internet and social media for a while now. I think it'll be a few days till people want this cheaper bitcoin, ether, etc. And later on, the big market players will screw them and the real bitcoin, bitcoin, will shoot above 3000.