Big O Tires stores in Southern California & Las Vegas are currently running a Friends & Family Buy 2 Get 2 Free Sale. The Buy 2 Get 2 Free offer is a package that includes a one-year alignment and their tire protection plan (free rotations, free balancing, free flat repairs, road hazard warranty, roadside assistance).
At my local Southern California store they had a couple options for my 2010 Prius. Sumitomo HTR P02 tires with a 65,000 mile warranty and Sumitomo Tour Plus LS tires with a 100,000 mile warranty. Both were priced the same, so I'm going to go with the 100,000 mile rated Sumitomo Tour Plus LS tires. Total comes to $436.76 plus tax. That's with installation, plus the one-year alignment (can come back multiple times within a year to have it reset) and the tire protection plan.
They also have $100 instant savings on their Big O brand tires and gave me the option of going with the 80,000 mile rated Legacy Tour Plus tire for my Prius. The Big O brand tires include their tire protection package at no additional charge. A set of four came to $400.92 plus tax. I opted to go with the Sumitomo's due to the higher mileage warranty and the fact that for only $36 more, I get the one-year alignment with the Buy 2 Get 2 Free package.
SoCal Link [bigotires.com]
Las Vegas Link [bigotires.com]