Texas Hunter,
No doubt there's deals out there, but they're more the exception than the rule, and a person has to be extremely cautious in who they deal with. There's always some risk involved when buying on Ebay, but a little common sense goes a long ways.
As previously mentioned, if someone is offering NIB EL's for $500.00-$600.00 and they want you contact them directly, not through Ebay's system, and they want payment via a Western Union money transfer, run as fast as you can in the other direction!
I buy and sell a few high-end binos, scopes, and knives as a hobby and I've made some amazing deals, but like I said, they're pretty hard to come by....YMMV