There are curently magazines editos shooted with the Epic. Red footage printed is very nice I must say.
Resolution is not really what matters most.
Red has the look, it doesn't guarantee that other brand-system will have a similar quality.
On the Hacked Gh2 or an Alexa, you can double the size and with some photoshoping it would suit an edito if the content is good. You can even play with this "lack" of reso.
In terms of human beings are concern, I think that we already reached too much digital resolution in still-holly-land. Unless you are doing museum galleries. More and more ADs and editorial houses are going back to less reso and more content. Red footage IMO shines in print.