I still refuse to believe Blizzard's StarCraft could ever be considered a retro game, though I will gladly admit it's still one of my favourite RTS offerings ever. And I definitely prefer it over its sequel.
Also, this StarCraft Collector's Special Edition Box on eBay looks rather amazing. It's the Terran version of the box and it comes with the game disk in its jewel case and the manual. Everything seems to be in excellent condition.
Seller ships worldwide.