Just a quick follow up on this because it got more attention than I would have thought (I really didn't expect mainstream tech bloggers to take notice but it ended up making techmeme)
Response has been mostly negative following along the same lines as this forbes blog entry by David Ewalt. To quote the article...
And as colleague Klaus Kneale points out: A vast majority of comic book fans are net-savvy enough to download scans of the comics for free from file sharing sites. Marvel needs to make it as easy as possible for readers to stay honest, and requiring a monthly fee will only keep people away.
That seems to be where most people are falling on this though Slashdot readers took it even further by theorizing ways to steal the content from Marvel's new service.
I'm not sure how fair it is to compare and ultimately judge a service unworthy because it "isn't as good as the way I steal the content now" but such is the world. I personally still think a lot of this will be decided by interface in that the stolen copies are straight .pdf scans and that is not an optimal viewing experience. If Marvel releases its material regularly (rather than picking and choosing what to release) and makes a high quality viewer they could still beat out the theives.