Hypothesis: the Supreme Court refused to hear the case, not because it didn't think it was important, but rather because:<p>1) MA policy on taxing NH workers for MA companies is set to expire anyway (so less urgency for this exact case)<p>2) It is a very important question which will come up again, and the Supreme Court wants to have lower courts thrash this out for a while first. This means it gets studied from every angle by more judges, and by the time the Supremes have their say, they can feel more confident that they have all the relevant facts on the table.<p>Generally, if you're an impatient, "hurry up, this is important" kind of person, you don't end up on the Supreme Court. All things considered, that's probably for the best.