What else comes with Sins of a Solar Empire - Trinity besides the orignal Sins and the two expansions?

Impulse is selling Sins Trinity for $39.99

Impulse is also selling original Sins for $9.99, and each expansion for $9.99 each.  $9.99 * 3 = $29.97.  So why would I buy Sins Trinity when it's over $10 more expensive than buying the three titles separately?  Do you get something extra for buying Trinity that's worth the price of a fourth expansion pack?  I though "bundles" were supposed to SAVE you money, not be more expensive.

EDIT: Apparently the original Sins game by itself is no longer available, so this post is moot.