I agree that in many cases the costs of producing a printed version of a product vs the digital version is being over estimated. In my case at least the pricing of digital goods is losing authors sales any way. I'm not going to pay $9.99 for an e-book when the same book is available in paperback for $7.99. I see this constantly and books that I would have otherwise tried I simply skip. If we simply say that printing costs and digital distribution costs are very similar due to the efficiencies of our manufacturing and shipping systems I'll accept that argument. Charge me the same price for the digital version then, not more.