Yeah that's right, comes together with Bushwhacker in most sellers. Some of the retailers like BBTS and TFsource did have him alone, but they charge a premium of over $50, and that's before adding on shipping. Haven't done a search, but some might still have Cogz alone in stock.
Forget about eBay unless you're desperate... people are already trying to pass him off for over $80, which is silly given that you can still get the 2 pack from retailers!!