Chicago may be struggling, St. Louis and Toronto may have had near-death experiences, and Houston may be on the verge of an all-out labor war, but things are just dandy at the Boston Symphony Orchestra. As the BSO prepares to kick off its holiday pops season, it is pulling in the kind of ticket revenue which would be enough to fund some orchestras for a year without a single dollar donated. Never an organization to underestimate its own importance, the BSO’s managing director brags, “There are (smaller) orchestras that for the entire 52-week year will have not even $10 million of sales, We do almost half of that in basically three weeks. We are the biggest orchestra operation in the world by a big margin.”