$9 for domestic, $9.75 for the good stuff (in the latter case it's that price both at the concessions and sold-in-stands).
most stands had $9.00 cans of MGD/coors light/miller light, and $9.75 cans of Blue Moon. I bought a can of Coors and regretted it the rest of the game. $9 for a beer is just insane (but then again, I also paid $5.00 for a hot dog).