190 is still a good price. You can look, but at this point it's getting hard to find last years stuff. I think there were some small changes to the rk30s this year, maybe a different baseplate blend I can't remember. check out their videos on vimeo or home page, they go through all the models and updates.
They only have videos for this year's models, there's no references to last year, and they've taken down last year's videos.
I suppose I can Google some 2011/2012 pics and compare to 2012/2013 pics to see if there are differences that are apparent to the eye.