how much is starcraft the biggest boldest collection actually worth

The "StarCraft: The Biggest Boldest Collection" likely refers to the Collector's Edition variant, which is valued at $838 used and $1,676 new [1]. This is the highest-priced version in the catalog and is based on 7 eBay sold comparisons, though the prices vary widely.

If you have a different variant (like the Big Box or Battle Chest), let me know, and I can provide more specific details. For the Collector's Edition, you can check the live eBay listings for current asking prices and compare them to these sold values.