should have bought your tires at costco!!
free is a whole lot better.
(allthough, I guess it would depend what tires you wanted and what size/load range, etc)
Don't forget Costco also includes free rotation, flat repairs and tire balancing for the life of the tires. The balancing really adds up at about $15.00 each.
When I bought my tires there (BFG 275/55R20) they were significantly less expensive than other tire stores.
Oh yeah, I second Country Tire. I've been there a few times with the Jeeps and always got great service with low prices.
Vince