Those two users have only ever sold seven items, and all of them were laptops with Rockwell Software installed.
So let's apply Occam's Razor to the possibilities:
1. One or more eBay users are selling used laptop computers with legitimate transferable software licenses worth more than $10,000 for between $600 and $700 because they are obsolete 'training stations'.
2. One or more eBay users is selling $200 used laptops with pirated Rockwell Software licenses for $600 to $700.
The Universe is a big and strange place, so there is a very small chance that this eBay seller is really offering transferable licenses at a fraction of their value. For our purposes, we will postulate that the activations are illegal copies.
The eBay listings don't actually claim the licenses are transferable, but all non-transferable licenses (Gold Masters, site licenses, and Toolkits) use time-based expiration.
So the question is "is it a criminal infringement of copyright for me to buy a software product that is illegally copied" ?
I'm not sure. The eBay seller is committing criminal copyright infringement, but I'm not sure that a buyer would be committing a similar crime.
A few years ago a couple of guys were prosecuted in Federal court and did jail time for selling Rockwell Software toolkits on eBay. I wasn't personally involved in the case, but just read some news articles about it. In my recollection, none of the purchasers were prosecuted.
