They typically die after reproducing. Mothers use their remaining energy to help their offspring survive, fathers sometimes do but not all - if you could somehow capture only post-mating male octopuses from species that don't sacrifice themselves for their offspring then sure, but that seems like an unrealistic expectation.
So is growing billions of genetic clones of that one perfect fruit, but you know...
I suspect that would not be good eat'n. Female ocotopuses that have laid their eggs start to fall apart - you can see the skin peeling off of them. The females stay with the eggs until about when they're ready to hatch and then they just sort of go to pieces. The males, I suspect, suffer a similar fate after they've mated.
except the mother has to care for her eggs until they hatch. So I guess we'd be fine only eating the males...