Yeah, I am also with @tarekb on this that the combined value of both BTC + BCC is not going to be lower. In fact, what I am expecting is, people will immediately sell their BCC gained after the split to make some profits, because of doubts regarding the future of it, as you said.

So, the value of BCC is so much expected to go lower but the BTC, it might be lower for few hours after the split. After that, I am expecting to touch new heights. And, all the cryptocurrency including ETH dance along with bitcoin (evident from the past), so I am also expecting ETH to go up with that, and hence my suggestion to load it up now. :)