Re: says:
I had a Motorola Surfboard SB3100 which I had to buy myself (This was in the early days).
When they upgraded the speeds above 10Mbs and the SB3100 couldn't obtain the new speeds (The ethernet was only 10Mbs), they sent me a free modem and wireless router.
Over the years, I have had only a few hours of downtime overall, but I must admit I don't use their DNS.