I used to care about official canon, back when I was naive and actually thought Lucas cared about holding to the EU and his own films.

These days, though, I spit on the very concept; any "canon" which changes on a weekly-to-monthy basis is a canon in name only.

A big chunk of my distaste for "official canon" was also been coloured by the EU completists; they've done nothing but piss and moan about how the Clone Wars has contradicted history established in the EU -- and the same is likely to be true in regards to the ST when it comes out -- but not once did they criticize Lucas for doing the very same thing with the PT. Cognitive dissonant/double standardizing idiots all.