I'm don't think we can assume that demand is sufficient to provide a profit. I wouldn't want to make a DG/PAM mistake. How many of these do we think we could actually sell at any price? 1,000? 200? We only sell how many TAGS each year? Is the number likely to be larger or smaller than that. I don't think a moss pamphlet is going to attract nearly as many buyers as an basic ABC on growing plants -- I think both of these have been proposed. But there are plenty of the latter type of product around for sale already, so the latter would be a competitive market -- a hard fact if we were looking for a profitable margin or even a breakeven but also an established market. The Moss pamphlet is probably a rather small market. Mosses are intersting but not the most
popular aquatic plant. I suspect we could sell far fewer moss pamphlets than TAGs, even if we sold them for a fifth of what a TAG costs.
For Mosses, I'd favor a one time expenditure for a web version -- As Treasurer, I wouldn't care then if we gave it away, knowing that it wasn't going to be a continuing drain on assets regardless of of many "copies" were needed over the long term. If it could be sold, all the better.
Tackling the existing How-to-grow-plants market, much more confusing to me. And didn't we used to give Ben's excellent primer away for free?