I've known a few folks who don't really smoke cigars although they might light them. They just basically eat'um. That has never appealed to me, but then I never really developed an affinity for chewing tobacco either, although I've tried it. My understanding is that a chewing tobacco addiction, even though the nicotine is absorbed through the mucous membranes in the mouth, tongue and throat, can be even more powerful than a smoking addiction, even cigarettes.
Agree with contendertotes, I don't think cancer is anymore likely by chewing a cigar versus smoking it. If it happens, it happens (and we all take the informed risk). Just my thoughts............