I gather there is not yet a market for selling reports through e-readers? (the kinds of things we’d sell for $100-1000)
You’ll find that people are still buying $100-$1000 reports in PDF format. While there might not be a market for these products just yet through the retail stores themselves (Amazon, Kindle, etc.) there’s still your current market.
If you’re selling PDFs, one thing you might want to do is offer your PDFs in Mobi and ePUB formats as well. Users can download PDFs to Kindle, but the content is generally small and hard to read. Offering the additional formats allows customers to download the files directly to their devices in an easy to read format.