Modern Combat Supplements...how do you want them?

[shotgun-toting chipmunk]

I'm trying to gauge interest in Modern Combat supplements we've been working on at ZD Games. We were originally looking at just producing .pdf versions of the books, but we may be able to do softcover books as well. Basically, we want to know what you, the gamers, want. Are electronic copies enough, or you want the feel of paper in your hands? Please participate in the poll, and provide any other feedback you wish. Thank you!