#1: The Patriots are no different from any other sports team. No, wait, check that: they are. They're smarter than most.
#2: Seymour HAS looked to "get the money". He held out to "get the money". He made sure his contract would be up by 30 so he could "get the money". Well, guess what? To paraphrase Princess Leia to Han Solo near the end of "Star Wars", if money is all you covet, then that's what you'll receive. He's GETTING the money. He's going to Oakland, where he'll either get a fat new contract from them, a fat new contract from someone else, or a tag which pays him a boatload of dough. He can't pretend that, suddenly, it's all about playing for the Patriots. If the Patriots had made the trade with Indy or Pittsburgh he'd be there already, trash-talking the Pats just like the rest of the mercenaries who've moved on.
As has been said, it was stupid of him to buy a new house here, and it's stupid of him to pout about being traded, when he knew perfectly well all along that a.) he wouldn't be here in 2010 and b.) he might get dealt. Boo frickin' hoo.
The Pats can trade a guy whenever they want. Kraft can fire Belichick whenever he wants. Your boss can make you eat sh*t whenever he wants, or fire you. Your wife can hold out on the poontang. The government can make your life miserable with an audit. God can end the whole ball of wax with a well-timed tornado, runaway truck, tiny cancerous blob, or whatnot. Life sucks, Richard. You're getting paid millions to play a game, and this is part of that deal. We all pretty much get the same deals in life. How we handle them means the difference between going out like a Tedy Bruschi or going out like an Ellis Hobbs. Seymour's made his bed, through years of his actions and the image he's apparently given to the Pats brass.
The grass always looks greener on the other side. You usually find out that it's the same at best, and sometimes it's a lot worse. Ask Damien Woody, or Lawyer Milloy, or some of the others.