the next time you guys start looking for tires for your cars, try looking at "onlinetires .com".
it used to cost me around $150 bucks a corner for her car, now i can get the same tires or better much cheaper, shipped to the house or work.
you still have to have them mounted and balanced, but it works out a lot cheaper.
i know that some areas are more competivley priced that others, but i live in a one horse main street town, so we are a captive audience so to speak, and when they give me a "great deal" on tires, it's usually at or few bones below the price as the general public.
onlinetires.com also have sales on some tires with mail-in rebates.
walmart and most of the other places will mount and balance the tires for you, and may even offer road hazard warranty.
it may not fit everyones interest, but i thought i'd chime in with the info just in case.