My theory is just that it's an entirely different character, and not just a slight materials and accessory change, like the Jawa. Also, the chase Jawa seems to have been about twice as abundant on eBay lately as well, but that's really not saying much...
And Matt, remind me, you got both of those for that sweet deal that was discussed in here a couple months ago, right? I remember a lot of folks missed out on that one. I think you scored on it, 'cause you had ordered BOTH of them, rather than just one or the other like most other people did...