Do I get sick of these videos? Yes. Do I prefer simple safety videos (or even no videos) as a frequent flyer? Yes. Do I care? No. These videos are a great marketing ploy for Air NZ and I welcome them getting more business. And also, for my friends/family that travel very infrequently, they make the trip a bit more "fun" for them, and set a warm tone on the plane.
The only thing I dislike is that my partner doesn't like it if I put headphones on and ignore the safety presentations (despite the fact we fly all the time) so if we travel together, I have to watch these videos again and again, haha.