Maintenance

[Mirage]

That's not even nearly as easy/fast to efficiently do as 16 lv30 naked mules, though. Each character would need to have all limit breaks done, "some" gear, do missions for access. While this is easy to do, it's not done in the 1-2 hours it takes to recreate 16 recently banned cruor-cows.

You probably have to pay at least a bit of attention to each of the characters you want to use in there too, so you can't just leave 16 characters in 320x240 windows and minimize them while doing everything in a different client instance.