Why they don't offer a cheaper electronic version to coincide with the print release is beyond me.
Especially since you could then buy the TPB at full price if the story arc was good enough to keep your interest.
You could even "subscribe" and have the issue (or link to download the issue) in your email!
And a program like CDisplay could easily be altered to have a small nag for advertising purposes.
I mean... seriously, what's the hold up here?