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Last year, Japanese consumers spent an estimated $20 million to view manga on handsets, according to Tokyo research firm Impress R&D. Manga now accounts for half the books that publishers sell for cell phones. "Our sites sell a combined 10 million episodes every month," says Katsuyuki Kobayashi, a deputy general manager at NTT Solmare, which runs the Comic-I and Comic C'moA sites, Japan's biggest online stores for cell-phone comics.http://www.businessweek.com/globalbiz/content/apr2007/gb20070409_610225.htm
The average e-comics buyer spends roughly $15 a month, buying up several episodes. For an episode that runs about 10 pages, consumers pay anywhere from 25ยข (in black-and-white) to $1 (color). That's roughly comparable to the thick weekly magazines, which normally have 10 episodes per issue and sell for around $3.