ep 09, aka ep 14, is certainly not boring, or at least i didnt find it so. it's the last ep of the series, after the movie, and explains, obliquely perhaps, the whole point of the show (highlight to view):
Haruhi giving Kyon the umbrella for them to share on the way home, Kyon stupidly not realising what Haruhi was implying; and Kyon ruminating on the previous six months and the friends he's made.
the sci-fi absurdism is just a cover for waht's actually a sweet (and funny) story.
(unrelated question: is there a [spoiler] tag or similar in this forum?)