Playstation 2 European Automotive Silver

Hello all! Ive picked up this PS2 just this last week. I have not been able to find anything about it except on this site! I really was wanting to know what the value of it was but also maybe a little more about the history behind it. here is the link to the thread I found
http://www.assemblergames.com/forums/showthread.php?13905-Rarity-of-the-colour-variant-PS2-s

The store I bought it from told me that the person that traded it in was a Sony rep! Crazy that they traded it in! But worse, there was a stand and controller with it, but the store did not take it in!!!! I told them about what kind of PS2 it was and they are trying to get me the stand and controller unless they threw it out, which would kill me! Any way, I have not been able to find any auction site's that has any for sale or that have sold, thanks for your help!