The M1A1 and later version's 120 mm canon's "Silver Bullet" amd later version sabot rounds turned out to be good enough to go through a sand berm and then penetrate T-72's frontal armor, negating a standard desert warfare technique.

Getting back to the A-10, we expended 5,000 Maverick missiles in the first Iraq war, and nearly 1,000 in the second, mostly employed by F-16s and A-10s in the first (https://en.wikipedia.org/wiki/AGM-65_Maverick#Deployment).

Which brings up an interesting hack used in the first Iraq war: the Mavericks used at the time fed a 15 degree wide image to a screen in the A-10 cockpit. While officially a daytime plane, they found that by the expedient of mounting on and just using it for imagining, they could do all sorts of nighttime missions that e.g. F-16 declined to take. All this per a book on there deployment during the war, I'm pretty sure it's this one: http://www.amazon.com/Warthog-Flying-10-Gulf-War/dp/00288102...