Maybe I'll get season seven sometime, because "You Only Move Twice" and Hank Scorpio was some of the funniest stuff the show ever did (and maybe season four, because of, naturlich, "Last Exit to Springfield"). There was one joke in the former episode that for years could send me and other fans into conniptions of laughter just by mentioning it:
"You ever see a man say goodbye to his shoes?"
You Only Move Twice was Season Eight
Although there would be nothing wrong with getting Season Seven as well...