Well, other than all of the government grant money they get constantly to build bigger and better accelerators, design and build new experiments, launch test platforms into orbit, etc., so that every year we can get more "we don't know" from the physics community.
Cost of the Large Hadron Collider: $4.4 Billions
Cost of the Iraq War (to the US): $800.0 Billions
War! Huh-yeah! What is it good for?