I'm not sure that all of the titles that have been disappearing from the site the past few days are necessarily gone for good. The site contains the following statement: "Please note, we only show store search results for releases currently in stock in the ConcordMusicGroup.com web store." I recommend checking any title of interest on Amazon, and if Amazon itself is still selling it on a current basis, and several Marketplace sellers are selling it at reasonable prices, it's probably not OOP (or at least not yet scarce). On the other hand, you'll find that some of the titles in this sale are being sold on Amazon only by a couple of Marketplace sellers--if any--and for extremely high prices. Those, of course, are the ones to grab from the Concord sale.
Speaking of which, a nice little CD that seems to be still available in the Concord sale, but is only available from a few Amazon Marketplace sellers for $47 USED and $90 new, is Ruth Price with Shelly Manne & His Men at the Manne-Hole:
Track samples are available on Amazon. Very nice live recording of a rarely recorded singer (sort of a cross between Anita O'Day and June Christy) with wonderful backing by Manne and his Men. If I didn't already have it, I'd grab it.