Just so you know, Sears never price matches "limited quantities" or "while supplies last" so they are consistent. Every sales flyer lists the various limitations/small print. It doesn't make sense for them to price match something the other store doesn't even have or can't guarantee will be in stock when you get there.
As to the stores just being out for themselves, they're not exactly out there as non-profits, and it's not like customers aren't looking out for themselves too. In saying the customer comes first, they're not saying "hey just walk out the door with it and forget the fact we have to pay our employees, electricity, etc."
FYI, Sears is one of the best employers and customer conscious companies out there. They make up the difference in reservist pay and continue their benefits for up to 2 yrs when someone is called up to active duty. They also support Heroes at Home which helps repair military families and veteran's homes. Sure they're out to make money, but at least they take care of their employees, which is more than a lot of stores can say.
Shop where you will, but I'd rather support a company that truly thinks beyond their bottom line.