Indeed. I know a lot of "factual" info from the books, but if it defies logic (as it often does, as they pay very little care to what they write and even less so to maintaining continuity with the old info once the prequels came along) then I'm going to use the films as my primary source of "canon". Not an accompanying book.

You're arguing about info that the writers pulled out of their asses and Lucas probably ok'd without even reading. This info changes all the time. It's not important at all.