It's kind of neat to pass through clouds while aboard an airplane. Well, if you're in a window seat anyway, which I always go for. Never been on such a long flight that the aisle seat seems necessary (usually only an hour or two, usually have connecting flights too), and middle seat seems like the worst option if there are more than two seats per row, so window always seems like the best choice for me.
But yeah. Only flown a few times so far, so it's probably mundane to more experienced and frequent fliers, but I thought it was sorta cool.