Without knowing that info, I can't really say if the congregations are getting hosed on those price tags.
Well, I'll make a gut call. We are talking about the WTS, so I'd say it's odds on the sheeple will be getting screwed. The OT God likes to mix it up from time to time, when he's done with the killing he becomes 'Jehovah of Price Gouging'.
Pure speculation, I'm sure they won't benefit financially. After all, they are just a good Ol' fashion religion.