I got them all. To me the Ray Gun is the best. Because you get Kang, his crashed ship & obviously the Ray Gun. The Raven seems to be the only one that's not worth it due to the fact that its just a walking decoration that flys when tapped on. That should have been purchasable with treats
Also none of this stuff is going to poof after Halloween. The only thing that will go poof is the ability to purchase them. Hence the "Limited Time" banner on them. This also includes the other stuff you bought with treats. Shop of Evil, Cemeteries, Super Collider, Bad Dream House, etc...
