I don't like the entire issue devoted to a special topic idea if you expect to sell on newstands as well as subscription. There are many magazines that I find occasionally very interesting because of the special focus of that issue but I avoid subscribing. Why subscribe when half the issues are of no interest to me at all and some other magazine may have something of interest this month.

Since subscriptions seem to be the life blood of publishing it would seem to be the wrong way to go if others do as I do.