Dark horse did announce it. This time they even bothered to give advanced notice it''ll be a limited run. The last book they did this with they oversold to almost every retailer, then announced it was a limited run. So they are learning how to not screw over fans slowly but surely.
Hey I checked up on that, and Dark Horse officially stated that that was a typo, and that there is no difference in page count. So now that I know the only differences are the cover and page edges, I think I'm fine with my regular copy =P