Actually for the level of customization and for a variety of fully rigged and animate-able (is that even a word?) models combined with the fact that nothing like that previously exists in the software package (After Effects) I think that $200 is very cheap.
Of course the catch is that you need his Element3D plugin for the model pack to work.
Welcome to the wonderful world of commerce. He’s tossed his bait in the water. Wanna bite? Or not. You’re the fish.