Mines an oval layout, not as large as D&J's or Willie's or a whole lot of other members, I've built what I can with the space I have. Its built not only to watch trains, but also
to do a little switching when I'm in the mood or do both when I'm feeling overconfident.
I've found there are always little tweaks I want to do to improve the layout as a whole, as well as ideas I get from other members that I would like to at least try, I've built a small diorama that's been inspired by the members here, it's not great, or even accurate, but ok for a first attempt so no, I don't think an oval track is boring, only when you lose interest as a whole in MRR does that happen.