Eh I think they'll get better, but right now the technology is way to new to pass judgement.
A lot of people hated the iPad as well, and thought it was an overpriced gimic. Maybe the watches will do the same.
The iPad worked well though. It was initially hard to see its uses but once you got one in your hands you could instantly see the point. It wasn't for everyone, but it turned a lot of haters on first sight and of course the sales speak for themselves.
The watch has the inverse effect to some extent. Once you get one in your hands it's frustrating and underwhelming. It doesn't do anything you think it can't, and it does a lot of things badly that should be simple.