The best bargains have already bean bagged by other large retailers.
In our town there is a giant Asda white goods distribution depot. I have it on good authority they they have just filled several isles with the likes of Wii and many other highly desirable items from Woolworth's for two reasons,
1. They were a bargain, even for Asda with their buying power for discount.
2. It stops the market having to match the sell off price at Wollie's to sell anything, they'll just sit on them and keep the price up.