Derrek Lee to the M's?

So Ken Davidoff is predicting that Derrek Lee will sign with the Mariners on a one year contract for $7 million dollars.

Some quick shots about this:

• Lee will be 35 this year
• Coming off a disappointing year by his standard with .260/19/80 between the Cubs and Braves.
• 2009 was arguably his 2nd best offensive season
• His batting average on balls in play was down marginally last season
• He is generally considered to be an above average first baseman
• His wins above replacement last year was 2.0.  2009 was 5.3
• He would be so much better than Casey Kotchman it would boggle the mind.

There are a lot of things to like about Derrek Lee, but I can't for the life of me understand why a 35 year old would sign with a team certainly not going to the playoffs, also sign with a team certainly not going to the playoffs which plays half of their games in a park which will probably kill his value in 2011 should he wish to continue playing, AND sign with a team that would most likely ask him to DH for most of the season.  Furthermore, why he would sign with the M's for, what would probably have to be considered to be market value and for only one year defies logic.  I just don't see the fit here, unless for some reason Derrek Lee just loves him some Space Needle and traffic jams.

It would be a nice pickup for the M's, but it's probably not worth getting excited about.