SportsCollectorsDaily.com - 1983 Kellogg's Baseball Cards - Will They Cover Other Sets?

The latest story on sportscollectorsdaily.com discusses the 1983 Kellogg's baseball card set.  Here it is:

http://www.sportscollectorsdaily.com/1983-kelloggs-set-final-vintage-issue/

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The cards were back in cereal boxes after being mail-in only in 1981 and 1982.  One would think that the 1983s would be the easiest ones to find in unopened packs since they are the most recent.  No, I never see them available, but factory sets are easy to find at a good price.

I want the individual, unopened packs.  Where are they?