Don't know how long this has been the case, but I just noticed it myself. They don't carry a bunch of stuff, but could be handy, if you live close to one, and just have to, for example, get a new Uno on a Sunday. Not sure it's in all locations either.
Couple examples:
http://www.microcenter.com/single_product_results.phtml?product_id=0359989
http://www.microcenter.com/search/search_results.phtml?N=4294966675+4294953197&
(which might not work, because their website really likes for you to choose a store location)