Yeah. The Warhammer one is pretty expensive. To it's credit, it's one of the nicest catalogs out there and actually shows off not only the finished model, but also the individual bits and pieces in the kit so you can look around if you might just want to order just those or get an idea what you might be in for if you want the kit.
Warmachine though.... I haven't actually looked too much into the details, but I understand that it's basically become the rival to Warhammer these days so you get your little fanboy wars going. Some of the Warjacks (I think those are the names for the mechish things) are kinda cool though. I really like that little one you posted a picture of, for example.
