Let's not forget Pujols also play 1B, and that weighed on his contract. Baseball views JDM strictly a DH. He wasn't attached to draft picks either. That did not helped JD market. Remember Edwin Enarcarion 3 year ago, and Nelson Cruz too, both got far lesser deals.
JD did get the biggest deal given to a DH, but far less than the $200M ballpark he was seeking. Opting out will not really help his case next year much.