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View Poll Results: Which specialties are worth the money (multiple selections allowed)?
Some are regional. Wreck won't help someone who isn't near wrecks. Same can be said for Cavern and Ice. That said, there is value in the mindset that should go along with overhead courses.
Other than that, most of those hardly require coursework (nitrox, solo, and -depending on how it's taught - deep not withstanding), and thus I don't see the courses as being worth paying for, at least at their basic levels. Some instructors offer fairly extensive courses that go beyond what I'd call "specialties" though the share the same names, and they may be well worth it.
What is DPV? and what exactly is an equipment specialist? Also, I assume you mean which ones we think are worth it even if we don't actually have interest in doing the particular activity? i.e. I don't live in a place where ice diving is an option but if I did, yea, I would probably take a course.
Thanks Blackwood-and so now I know they are not useful
I said Nitrox but only because it is required to show the card in some places in order to get the gas. I suspect that any of them could be self taught really but Tomeck made a practical point of the 'regional factor'-to him diving in ice is probably nothing, to me, the only time I see ice in my water is when I am at a bar so I might be willing to pay for the knowledge before jumping in.