I bought my Cosmic from HeadRoom on October 16th, 2001. It is in mint condition and sounds great.
While I thought I would need the portability the Cosmic offers, it has only left my home system a couple of times. I would love to see my Cosmic with someone who would use it outside their main system on a regular basis.
In my opinion, the Cosmic is an amazing amp. I wish I could keep it, but need the money.
What you get: The 2001-edition Cosmic; the battery pack (with fresh batteries); the wall-wart; and, the instruction manual. The Cosmic comes with a 5-year warrenty, for which I'll include a copy of the invoice.