But they bring in so much revenue! And visitors love them, too! Or at least, experience "negotiable affection" which is close enough for jazz.
And speaking of revenue, the free financial advice booklet (44 pages in the Reader Library software),
Money Girl's Smart Moves to Deal With Your Debt has now shown up at Sony (but not available for Canadians).
I've also edited in a couple of erotic romance novellas that I suspect have permafreebie status, and there are some still some promo short stories out there that people may be interested in which I may add later when I get back from running errands.
In the meantime, if you're interested in SF/Fantasy, do a search in the Sony store for "Star Wars: Lost Tribe of the Sith" or "John Jackson Miller" to turn up his freebie novella series (5 parts so far, some parts not available to Canadians, illustrating the annoyance of pointless geo-restrictions - be consistent about it, darn you!).