RE: 3D
I can see your points about 3D. For me it was a bordom factor. Once I mastered a trick I was looking for the next one to learn. 3D opened up a new bag of tricks to master. It's also exciting to see a plane do something you have never seen before. Hovering is one of the hardest things I've tried but is far from the most fun to watch. Some of the stunts I mentioned earlier are much more enjoyable.
David