Everyone giving BCC so much attention tells me that people are worried about it being successful. hmmm..
Yeah, the fact that everyone thinks it will be worthless and plans to dump it makes it sound like Ethereum Classic's launch. (Well, launch isn't really accurate, since it was the original chain)
The idea that it could overtake Bitcoin seems farfetched...but with a lot of hashpower behind it (Bitmain), a major payment processor (Bitpay), and support from large exchanges (Bitfinex, Kraken, Okcoin, Huobi, BTCC), I could see it gaining some traction.
The bigger question is, what does that do to Bitcoin's network effect? According to Metcalfe, it means the value of both networks will be worth considerably less in a network split (assuming BCC's share is sizable).
Also, regarding Ethereum Classic: the overall market cap (ETH+ETC) dropped something like 40% after the fork. Something to keep in mind....