Last weekend, I went to the last 2 days of sales at one of the affected stores, and everything was 75% or more off. I managed to snag a couple of nice retractable Lightning-to-USB cords (Enercell branded with MFi chip, so they actually work, see pic below) for $4 each, which is cheaper than Apple's standard cord. I also scored a couple of Mini DisplayPort-to-HDMI adapters and a handful of MIDI cables/extenders "for the low-low".
Don't expect to get a TV or a nice component stereo; those stores have already shipped the really good stuff to other locations. If you're wanting to stock up on button-cell batteries or the odd cabling or DIY components, though, you just might find some good bargains.