If you've got the money and the time, I say do it. It'll help your people-skills - not because they teach you how to manage people, but because you'll be doing lots of group work with people from different age groups, social status', ethnic backgrounds, and professional backgrounds. It's a real challenge to work with so many different types of people.
Thanks, I would suggest that people skills are already my number one talent. But then that doesn't mean I shouldn't work on further optimizing those skills does it?