355 spider vs. 97-99 550

I am curious at any opionins on the choice between these two cars. I already have an '03 996TT that I drive everyday and take to the track 5-6 times a year. The decision becomes the life style of a convertible in sunny SoCal or the torque and GTqualities of the 550. Both are great cars each in their own way,which just makes the decsion that much harder. There is also the price differential to consider, as well.