I found this article interesting and informative and thought I would share the news.
http://www.dslreports.com/shownews/Modem-Rental-Fees-Alone-Net-Comcast-300-Million-Per-Quarter-130592
http://www.dslreports.com/shownews/Modem-Rental-Fees-Alone-Net-Comcast-300-Million-Per-Quarter-130592