Miami is still coming up in articles, but they have Tua. So why would Miami sign Brady? Brady is in a period of he needs a team ready to win now, like when he signed with Tampa Bay. Unless he just wants the money. Brady isn't a miracle worker without the coaching or talent around him these days. Interesting how he can throw over 300 yards in a bad game for himself.
As far as Brady being over the hill and "past his prime", I think that has been reported slightly less than the number of times Voyager 2 has left the Heliosphere. Yes, an obscure reference, but accurate none the less. I mean he got signed in Tampa Bay, and they've made the playoffs three times (4-2 record), won the Super Bowl once, and people are saying "he's done". Tampa was signed up for a two year run, and that was it. It worked. Brady isn't what he used to be, but he is leagues better than Manning and Favre were at this point.