I dislike e-bay for anything gun related and in general find them to be less and less useful for stuff other than new shopping or very esoteric things.
That being said I don't buy my wine or my tools at K-mart, i.e. we get diffirent products at diffirent places depending on the product and outlet.
I have found e-bay to be an invaluable place to trade garbage for green even with all of their stupid fees.
Heck I sold a plastic HO scale batmobile for over 300 bucks there...