I get something similar to this in my email ever week....
DC releases their comics, both in print and digital, every Wednesday and on that day all of the comics share the same price. A large majority are all priced at 2.99 an issue. There are 3.99 issue titles though like All Star Western and I've seen issues of the Justice League at 3.99.
30 days later the digital comics are one dollar or more cheaper. The prices very to some small extent. As an example there are back issues of the Flash that are 2.99 and then even later titles that are 1.99. In truth I've not studied this to it's fullest extent. I would presume that they get cheaper over time until a title reaches 1.99 which is where it will stay.
This is actually quite common in the entertainment industry. Think of the "cheap" theater in your town that runs all the movies at a lower price no matter what time of the day you see it. This is not, however, a common occurrence with comic books that are only one or a few months old.
I think that DC could increase sales and sustainability if they ran a large second tier promotion devoted to comics that are between 30 and ninety days old. Sure, they may promote the idea that if people wait they can get it cheaper and that could conceivably have a large impact on the first run release but I bet this would not be the case for digital comics.
Besides who cares if you loose 10% of your "first run" clients who are willing to pay full price on the day of release if you increase digital comics sales by 40% over all?
On a side note I wish DC would publish their digital sales. I know that there is a magic number somewhere that would illustrate that a book shouldn't be canceled because of it's digital sales alone. Also I feel as if a book might be good enough to generate digital only releases if the print sales aren't there. It's too bad they are so motivated by fear.
