A publishing industry insider informs me that I’m missing a lot with regard to the cost side of the Kindle equation. In addition to your basic fixed costs (payments to author, payments for copy editing, etc.) I’m told that the post-cleanup conversion process is sufficiently expensive that, at this point, publishers are generally losing money on their Kindle sales. That might look different if they could move larger volumes, and I assume publishers are getting into the Kindle game precisely because they’re anticipating higher sales volumes at some future point. But it means that for something that’s clearly going to be a niche product, like Railton’s book, you need to charge pretty high retail prices.