The reality is, Tom has 1 to 3 seasons left. He is wealthy well beyond most of our comprehension, so he and his kids and their kids don't need the money. He is doing it because he loves the game and wants to be respected.
The Patriots have to prepare for life after Tom. Giving him a long term contract seems completely un Patriot like to me. All of you who are crying about giving him a long term deal now, would be *****ing about it in 3 years if Brady wasn't playing any longer and the team was in cap hell because of the long term deal you want them to sign him to.
If his play is outstanding this year, and the Patriots refuse to pay him what he is worth for the following season I will be mad at the Pats. If Tom refuses to negotiate this off season and leaves for a year or two I will be pissed at him.
I would keep going year to year as long as he wants to, and is able to play at that high level.