I bought a used Series 2 at a yard sale last weekend for 3 bucks. It looks like new. I bought it for the remote, cant buy a replacement remote for 3 bucks and one can never have to many extra TiVo remotes.
The lady I bought it from said it had monthly service on it and her boss gave it to her the beginning of the summer and her boss never cancelled the service. I plugged it in today to see if it works on an older CRT TV I have, no ethernet plug on it just a phone jack. It booted up and worked good. I called TiVo to check to see if by chance it had Lifetime service. TiVo verified it is on a monthly subscription, does not have lifetime service and the monthly subscription is still active. I guess the ladies boss has never terminated the service. Nice guy I guess. I told TiVo i would not be making any changes at this time.
I wont be using it for its TiVoness already having a TiVo HD and a Premiere but does the Series 2 have any parts that might be usable to either one of my other units, i.e. fan, Power supply or anything else. Its remote works my premiere just fine.