boy this really depends. Is it a hive mind kind of thing or are we independent? Is there a prime? Do the duplicates have a shelf life or will they live a normal life once duplicated? I mean if they were independent and lived a normal life. Like some kind of spontaneous clone where we shared memory up to the point of duplication. Well then I would never do it. It would be worse than having children. If it were like a hive mind and we could re-absorb and such. mmmm. not sure as its basically a super power at that point. would likely use it casualy or as need be. Would definately make any carrying task easier. Even then it sorta depends how the hive mind works in terms of multitasking and such.