As per an earlier mention in this thread: http://forums.anandtech.com/messageview.cfm?catid=40&threadid=196234 here is a copy of the receipts I got when i purchased 2 APC UPSes from Walmart.
The APC Back-UPS 500 are clearanced to $40, and the Back-Office 280 is $20 at the Philly (delaware ave location). At this price i cleaned them out...and i wanted more. So i went to a couple other stores and their prices varied (mostly in the $120, $75 respectively range)...but i got a couple managers to agree to let me take more at the delaware ave price. You'll find a copy of the receipt here: http://www.netaxs.com/~peter/cheapups.jpg. Of course your mileage may vary
The APC Back-UPS 500 are clearanced to $40, and the Back-Office 280 is $20 at the Philly (delaware ave location). At this price i cleaned them out...and i wanted more. So i went to a couple other stores and their prices varied (mostly in the $120, $75 respectively range)...but i got a couple managers to agree to let me take more at the delaware ave price. You'll find a copy of the receipt here: http://www.netaxs.com/~peter/cheapups.jpg. Of course your mileage may vary