It's not the job of Circuit City's liquidators to clear inventory. Their job is to make money. And the most effective trick in their book is to exploit the belief among consumers that great deals exist at the failed chain's closing down sale.
Though the 10% discounts make non-discounted premium items a little cheaper, many goods at Circuit City are more expensive than last week. This is simply because the blanket discount replaces better deals previously in effect.
I've just returned from my local CC, and the story there is summed up by the fellow I saw excitedly clutching a $30 ethernet cable, delighted at the 30 percent price cut he'd get on it at the checkout. On the deals desk at the front of the store were Nintendo Gamecubes, offered "half price" for $50 each.
More interestingly, they won't sell display models, even of out-of-stock items. The store seemed well-staffed. Perhaps they're still hoping for a white knight to come in and fix everything, despite the "Everyone's fired!" note that replaced the Circuitcity.com site over the weekend.
Either way, the deals are barely competitive with healthier brick and mortar stores, let alone Amazon or Newegg. Wait for a few weeks until they get serious about clearing stock before wasting your time there.