To clarify, I'm asking what items require Goblin or Gnomish engineering in order to be used. That way, if I was interested in going through one branch to get all the Bind on Pickup items, then respecing and leveling Engineering back up to go to the other branch, what items would I lose out on?
The only three that I could find were the two teleports for either Goblin or Gnomish and the World Enlarger for Gnomish. Am I missing any?