[runyor]

This can be generalized to: Every time someone offers you a "deal of a lifetime" it's a deal that mostly benefits him. If it doesn't screw over a third person it usually screws you, and if it screws over someone else it still might screw you.

That's why the smart man will find deals himself. E.g. instead of waiting for a prospect from a cars dealer that makes him a good offer, he will study what makes a good second hand car, when the prices of second hand cars are lowest and then he will go and make an offer to a caring owner of a car to become its second hand owner.