If I actually thought he could be a big part of a championship puzzle, then I'd bid the very minimum (if there even is a minimum) to sign him, just to prevent him from joining up with one of the big market teams.
If we obtained him, and he wanted to be a mentor, great, and if not, he can stay at home.
But in all honesty, I don't really think he's got enough in the tank to really make much of a difference.
Bibby just signed a one year deal with the Knicks, and just in watching him play for the Heat in the post-season, he's pretty much done too.
If we were going to bring in a vet PG, I'd want it to be someone who's been around, but not someone who is late to realize that their time has mostly passed them by.