Mostly because it will be a pre-requisite to getting Rescue Diver. It also opens up my limits from 60 feet to 100.
This is one of the primary reasons I hear for taking the class from AOW students. It's also the one that gives me the most pause when interviewing them.
What is at 100 ft that you have to get to so fast? I do understand it to a point. That was my main motivation early on. Looking back it was not a wise one as I truly did not understand the increased risks with doing this.
I can also state that they were not clearly explained either in the class with the degree of emphasis they should have been. It wasn't until I took NAUI Intro to Tech and Helitrox that I really began to understand the difference that 40 feet or so makes.
I still enjoy deep dives. IF there is something there to see. Deep for the sake of deep no longer holds the same fascination. Having a much clearer understanding of the risks is why the class I offer is set up the way it is and includes the things it does. Even so it does not prepare the diver fully to go out and start doing every deep dive they can right after the class. It gives them the tools to gradually increase their range over time with a consideration of the conditions, objective, and resources available. That is made as clear as possible during the class.
100 ft is not the same every time. Freshwater, cold water, salt, warm, high vis, low vis, etc all can drastically change the prep and equipment required. Maybe it's because I train primarily in colder water with lower vis that I feel these dives are actually conducted much safer than a 100 ft in the Caribbean. I see divers posting from Bonaire, Grand Cayman, Bahamas, etc about their 100 ft dives that seem to be taken with the same attention to detail and planning as a 30 ft reef dive. "We followed the DM and all of a sudden saw we were at 100 ft, looked around, came back up. Got close on air though! It was fun."
I don't see that up here. A 100 ft dive is not routine. It shouldn't be. In any conditions. Belize had to enact rules because of the crap going on at the Blue Hole. Even PADI jumped in on that.
Decide what it is that you need to get to 100 ft to see. Then ask yourself if it's worth the increased risk to yourself and your loved ones. Realizing that you are only going to have 10-15 minutes there. IF your air consumption is really good and you have a large enough tank.