They gave some amount of real cash and a pile of junk metal w. hyper inflated MSRP prices based on comparative pricing of real US made "comparable" parts.
The reality is that AMS really "gave" less what some of the lesser sponsors contributed to the event. However because the perception is that AMS gave $1000's, they get the booth space, asshole fire zone parking, unrelated display cars, free track slots, free event registrations and the right to walk around like they own the fucking place.