Although the initial investment in CCR diving can be steep - anywhere from $5000 to $15,000 depending on the unit, plus training expenses, over time the CCR will pay for itself several times over with gas saving alone!
These tanks shown above are simply bailout tanks for the team, and were only filled once and used over multiple days for 14 deep dives. The savings were exponential in comparison with what an OC diver would have spent! Better efficiency, comfort and cost savings to boot!
What's not to like!