I've been looking at the new IG codex, and trying to wrap my mind around the points cost of a wyvern. The cost is very similar to a heavy weapons squad with mortars (which may itself be overpriced, I suppose, never used one), but by any measure I can think of a wyvern is head, shoulders and belly button superior, and to be honest I'm not really coming up with much that is a similar point cost that has anything like the same effect. Is it just that I play against Orks a lot that makes the point cost look insanely low?