Disagree. You are buying a virtual product, where the virtual product's price roughly equals to a real product's -- and why's that?
Brace yerselves, economy 101 will follow.
Any given product's price is calculated by four big cost factors:
- development,
- manufacturing (mass production),
- distribution (logistics, retailing),
- marketing
For the physical, you pay for all four.
Since digital has no manufacturing and distribution, you won't pay for these -- only for development and marketing.
Yet, the digital's price roughly equals to the physical's -- which means, the publisher has silently inflated the prices while reducing costs, and you, My Dear Customer, happily pay extra for nothing.
Definitely not good, and if you advocate 100% digital, you advocate a legit consumer ripoff practice.
Just sayin'
(… and I haven't even mentioned a nasty side effect of this illicit practice: market saturation!)