Would you really need to "multibox" though?

I doubt it would ever become profitable, I.E. Cost of 1 plex for a month, is X, we can only get 2mil SP out of a months sub right? assuming 500k - 1mil SP packets itd have to cost say less than 1/4 in AUR costs + market fees to make a profit

Also if it is profitable, Plex multi char training