I saw some sales figures for the IDW titles, and I was astonished to see that most of them sell in the 5000-10,000 copy range. Astonished, I tell you!
On top of that, virtually every issue has 2 or more covers, and I'm certain I'm far from the only fan who gets a copy of each cover. That could mean that as few as 2500-3500 readers for some issues.
I mean, how much can you pay the writer, artist(s), colorist, letterer and editor out of a $4 book that only sells 5000 copies?
I guess IDW must be making money selling the trades, and the monthly floppies are just "trailers" for the forthcoming trades...?