Glyfair said:It's those who want the product in electronic format instead of print and are willing to pay the MSRP for it.
I suppose there are those who do not have access to a gaming or bookstore that readily stocks WotC products, so that sort of makes sense. But, if it were me, even with the lack of available hardcovers to get my hands on, I would expect some sort of price discount considering I would have to supply the ink and paper for any sort of portability.