I recently purchased an unopened SWTOR collectors edition off eBay. I got it today, and it was as described unopened. To my surprise, the CD steelbook, which includes the collector's edition code, was missing! I did some research, and there are multiple posts on the forums of this **** happening. Very disappointing, but it is what it is. I am just warning people out there who are trying to get the digital upgrade code.
I know for sure that I was not scammed by the seller it all of the dirty *** tape from 2011 was still on the box and uncut. Darth Malgus, the artbook, and the soundtrack were still sealed as well.
Here are reports of the issue
http://www.swtor.com/community/showthread.php?p=389215
http://www.swtor.com/community/showthread.php?t=37229
The collector's edition came from Best Buy in 2011 if that makes any difference.