I don't see large or even small price differentials in the ebooks I buy. Maybe they haven't hit the SF/Fantasy markets but the ebooks I want are available and I can buy them from B&N. The few exceptions during various publisher wars have been available from Sony. Lucky for me I have options to get non-B&N DRM content. Unlike Kindle users.
I am tired of price differential with pbooks and ebooks. It makes no sense that a pbook is cheaper than an ebook and I have seen that. But not all the time.
OTOH I am completely willing to strip DRM and get whatever books I want on my nook. Limiting the right of resale is not an ability I choose to grant to corporations.