Depends on your political calculation. The Employer Mandate will cause lots of people to lose their employer-purchased health insurance. If implemented according to the timetable established in the law, those unhappy people would be voting in the 2014 congressional elections.
The lawsuit will be lucky to be tried in court before late 2015. It’s not going to do anything but make lawyers rich in the meantime. Fix the VA, pass laws and do your job Boehner.