I agree, I find the set grossly overpriced unless you need most of it... and especially the Rancor. The WM Jabba came with a ton more goodies that I feel like a Jabba without them is a tad naked. The Rancor's cool, so if you need it that's good.
The figures, eh... I'd say only one's truly desirable, and that's the Gammie. The others, weren't terribly tough to get.