ammo once they have a rebate or sale going on.
I don't buy much from Cabelas though, deal search on the internet for most things and anything call related sure isn't coming from a box store. the only things I can think of are gobbler lounger chair, ammo, maybe a piranta knife if you don't have one they are slick for any wild game, a facemask or little nick nack type things. Might also be able to find a good vest in the bargain cave either in store or online to put it toward I know I got a tac tater II there for like 75% off in the off season and just got it free off points years ago and that's a good vest. Decoys, they carry both DSD and Avian X now that I think of it $50 should be easy to spend depending what you need/want.