Build quality, Metal vs plastic (plastic in the ebay one). You could be supporting $000s' in equipment on this bracket, would you prefer a solid metal one or a plastic one? I know which I would stick $5K of gear on.
"It is one thing to make a picture of what a person looks like, it is another thing to make a portrait of who they are" - Paul Caponigro
Constructive Critique of my photographs is always appreciated
Nikon, etc! RICK My Photography