I'm with you--I thought the iPad was dumb and happily ate crow after using one. Looking at the Apple Watch today I'm scratching my head wondering what's the point and who really wants to be even more distracted by their devices.
I had the same reaction to the iPad as you, and now am a very happy owner. Because of this, I now withhold my opinions until I can try out products in person, although I personally could never see myself owning a smart watch.