That's not what I am seeing.
On the website, 275/65/18 DuraTracs are $252/ea for a total of $1,008 before mounting, etc. Total with install/disposal fee is $1082, and then you can get a $60 mail in rebate in the form of a prepaid Visa for a total of $1022 installed.
On the eBay store, a set of 2 tires is $544, or $272 each. There is a $100 instant rebate on the set of 2 dropping that to $444 per pair. 2 pair makes a set of 4 for $888 with free shipping to my door. The $60 Visa prepaid card still applies too so $828.
Usually when something seems too good to be true, it is. In this case however, it seems to have worked out! I have (4) 275/65/18 DuraTracs sitting in my garage for a total of $888 out of my pocket. I submitted my rebate for a $60 prepaid Visa, so assuming that goes through I'm at $828. I have a local shop that charges $25/tire to mount/balance/install, bringing my total to $928 installed. I've been flirting with these tires for a year and this is the best deal I've seen by at least $100.