$3.95/mo modem rental fee
On the other hand I bought a Motorola 6141 for $125 from Amazon, received it yesterday and it was up last night. MUCH better performance than the rented Cisco.
Don't know if I'm on a different VLAN with the DOCSIS 3 modem or what but the Cisco gave me 25Mb, then 12, then 18, then 6, then 22. Motorola is 20Mb. Always 20Mb.