[PSUBS-MAILIST] Commercial question

[swaters via Personal_Submersibles]

I have always heard that ROV's are cheaper to operate, less risky, and cheaper to buy. I was curious what is the advantages of submarines in the commercial world such as the oil industry? It seems like Phil Nuyten has been able to be sucsessful with submarines. Just a curiousity of mine.
Thanks,
Scott Waters




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