didn't know about those! i bought the entire series at a bookoff in shinjuku, and 1 volume included a 2011 calendar with all the kaminomi girls and one volume included the 100% kanon manga. also this manga got lots of special edition weirdly enough xD
the ani is kino but the manga's quality drops off a cliff for me. The first half is probably one of my favorite manga but then the last stretch is such a slog.