Bundle games give a max value of $30 until you give away some non-bundle games.

http://www.steamgifts.com/forum/vUnIE/important-updates-to-contributor-values-and-bundle-games

Bundle games only count according to a specific formula. See cg's posts regarding bundle value for details.

Ah, thank you very much. : )

Also, you can regognize those by the * behind the name. Those giveaways together go to a max of 30 indeed.

If you are giving away things to be generous, just give anything and don't worry about it. :)

But if you are only looking to maximise your contributor value, look for the "*" when you create a giveaway - these are the bundle games, and only count for bundle contributor value...

Bundle games are not bad to give away; many people do not buy the bundles so you will make them happy. And later, when you give away the non-bundle game, it's like an extra 20% contributor value "free." Sorry if that doesn't make any sense, other people explained it better. :)