Why is Garnett still sticking with T-wolves?

Garnett had a chance to join the suns and play along nash, marion, barbosa, and diaw and win a ring in 2007 or 2008. Yet he still wans to be a t-wolve. If he does not win a ring or is forced to go to another team late in this career like g payton he may not be regarded as that good as a shaq or duncan who may end their careers with 4, 5, or 6 rings.