Why Keep 'Em
Caron Butler was beast for the Mavs until he screwed up his knee. That was a huge blow for Mavs' fans everywhere. Butler was the second-leading scorer on the team and, arguably, the second-best player.
Butler has expressed a burning desire to stay in Dallas. He was extremely happy to leave a pitiful place like Washington and to come and help play a role for a championship contender. Now that he's a champion, his passion to stay in Dallas has taken a meteoric rise.
The Dallas Mavericks' organization has also expressed interest in keeping Butler. Butler, like his teammate Tyson Chandler, is a huge vocal force in the locker room. His emotion is contagious to the other players. Overall, he is just a great player and a great influence.
Why Trash 'Em
There's really not much to say here—but I guess there is one worthy argument to bring up. Some people might ask, "Why should we bring back a 31-year-old man who just scrapped his knee?"
Well, Butler is extremely dedicated to getting his butt back on a basketball court. We saw that as he tried to make the NBA Finals, which was a few weeks in advance of when he was set to be recovered.
This really isn't an argument though, Butler is a great player, and I'm sure he'll be ready to go by the start of next season. He has the entire offseason, and then some, to heal and practice.
The Decision: Keep 'Em.