I have three different editions of the toy pre-trailer release. It's a solid toy and very nice. He has several cool accessories and if you poke around, you can find great add on sets (official and non official), and yeah he has articulated fingers.
So far the cheapest I've seen the trailer edition is 189.00 at tfsource.com, however if you want to skip the trailer, you can still find him around 99.00-139.00 in various release editions. There is two U.S.A editions, and various Japanese versions (black colors, Ultra Magnus white cab version, etc.).
Or if you'd like to save some money one a smaller toy that's got the accessories out the ass, maybe you'd like Hybrid Convoy?
http://www.bigbadtoystore.com/bbts/p...89&mode=retail