Pitchers are far too injury prone to justify a contract such as this.
That's the risk with star pitching though. If you want to keep a player like Kershaw, you have to give out that kind of a deal and just accept the risk that comes with it. If you don't and he stays healthy and reaches free agency, another team easily gives him that or more and you risk losing him.
I hope Tanaka just signs with the Dogders, Yankees or Angels soon so the "lesser" teams can finally go after the secondary guys like Jimenez and Garza. It's boring as a Jays fan waiting for this Tanaka thing to end before everything else is clear.
Tanaka will be a Dodger if they want him, if not Yankees. His wife wants LA. Basically he married a model, and she turned into super wife. Pushed him to get in shape, get better, went to cooking classes to learn to make healthy food for him, etc. She is his main advisor and she prefers the warmer weather. (He made all his visits with her during the super cold week, that probably skewed what she thought.) I don't think he has a preference. Personality wise, i think he fits the dodgers better.
So the key here is if the Dodgers are done spending or not.