I think 200 dives, especially if they were varied, are enough to qualify for an AOW card without going through a course. People who went through lengthy basic scuba diver courses, some weeks long, should not be required to go through anything more. I was exposed to more class time and more diving when I was NASDS certified in 1972 than contemporary AOW courses require. I've never been turned down for a dive when it's the only card I bother submitting. I've seen too many AOW divers still afraid of the water, practically clinging to the DM. AOW is meaningless. It's experience that counts.