Frankly, I think the problem is two fold, the boats are too fast and there's not enough training. I could literally today go and buy a 50' Mystic for 1.5MM (as a hypothetical for this conversation) and they will throw me the keys and I will be on the water tomorrow morning. Could you imagine me doing that with a Cesna with twin turbines? I could still go buy it today but I wouldn't be "on the water or in the air" for quite some time.

Even the best throttle man in the world runs into trouble due to situations out of his control when running at a extremely high rate of speed because he wasn't on a closed course. I'm not a fan of any more government regulation; however, I think that if you want to buy a boat (V or Cat) that runs over X speed, you need to prove some form of "ability to safely operate."