oakley triggerman

The Steel/Ice combination is my favorite of all of the Triggerman colorways but, I was just cruising through ebay and noticed that there wasn't too many of this pair available. Is there a reason for that? I would assume that they made equal amounts of each, right?

Is there a list of the Colorways that the Triggerman come in? I'm looking for a pair but, am trying to decide on which one. Any help would be cool.