One of the essential differences between Genii and MAGIC is in the length of the main feature articles. I look at the articles in MAGIC, which are often only a few thousand words long, and think that Genii is just getting into the meat of the subject when the article in MAGIC ends.
This is a personal preference: no magazine in the history of our field has ever had feature articles the length of those which run in Genii on a regular basis. I'm glad many people enjoy reading them.
The model for MAGIC is the magazines you get in the seat pocket on an airplane: nothing too long, nothing too deep, and trying to appeal to the widest possible audience.
Genii takes an entirely different approach to its feature articles. I think my readers are smart people who want to really know a lot about our subjects--and that's what I give them whenever possible.