Was there a Collector's Edition of StarCraft or Brood War?
Solution 1:
While I couldn't find any official mentions of it, I found multiple images, eBay listings, and forum threads suggesting the existence of a non-US collector's edition. This forum post has photos of the contents of the aforementioned collector's edition.
Solution 2:
I can confirm that in the UK there was a collectors edition of Starcraft (I bought one). AFAIK there wasn't a collectors edition of Brood War.