Go to the website Foxpro.com or something like that. I havent been there for a while but they used to have specials. Also, they'll load the sounds you want instead of just getting what comes with them when you buy from a retail outlet. They used to have refurbished models on the site a lot. The way it works is that someone will send in there FX3 for a FX5 and get a credit for the one they sent in. Then Foxpro rebuilds the 3 and re-sells it. So refurbished doesn't necesarily mean your buying one that was defective. It could have simply been an upgrade. I have an FX 3 and while sometimes I think more sounds would be cool it's really plenty for me to have 32.
BTW just because you buy a Foxpro doesn't mean every coyote in earshot is going to come running. They help, but they arent foolproof.