I'm also thinking that the actual production of interactive material is, when done relevantly, extremely time consuming. Can the cost of programming and interaction design stay on budget? Will $5 per issue be able to sustain this type of setup?
Also, I'm trying to remember the last time when an interactive infographic was enlightening... [remembering] nope, I can't remember!
For magazine and paper news journalism, I think they can improve their market by going further into the video medium, not the interactive medium.