I just got my DM forms sent out. I took the course for more of a learning experience and have to say prepping for the exams really teaches one quite a bit about the "science" of diving, especially the physics and physiology. Having that knowledge can't hurt anyone. And going through the course gave me another level of confidence. I had about 75-80 dives in many environments going in, that surely helps. I really have no desire to teach OW classes (very time consuming, eats up all your weekends, a TON of responsibility for both young and old alike) however I do admit it's fun to help out on classes and I enjoy answering questions and helping divers work on problems etc.) I think any training can be of benefit, it's the quality of the instructor, and what you "take" from the classes that counts. Some folks just don't see a value in anything, while others seek out the knowledge and get as much as they can get from a class. I was also interested in the business of scuba so wanted to take this to sort of get an inside scoop. Same for me, would have to be all or nothing, most local shops barely survive. So for now it's Computers during the week, and hobby dives on weekends and dive trips when I swing the $. Maybe some DM'ing during the summer to stay current and in the water. That can't hurt.