As has already been said, if your gas consumption is still high enough that you're either doing pretty shallow dives, or getting low on gas limits your deeper ones, then Nitrox is only of small benefit. The biggest advantage of Nitrox is to extend available bottom time on moderately deep dives (in the 70 to 110 foot range).
There are those of us who believe that reducing nitrogen uptake is advantageous on ALL dives, and there is no question that Nitrox does that. But that is a personal and rather theoretical belief; it is not possible to demonstrate that diving Nitrox improves dive safety, mostly because DCS is so uncommon, anyway.
There are those of us who believe that reducing nitrogen uptake is advantageous on ALL dives, and there is no question that Nitrox does that. But that is a personal and rather theoretical belief; it is not possible to demonstrate that diving Nitrox improves dive safety, mostly because DCS is so uncommon, anyway.