haha nice, i was half trolling cause you said 1 week and 1kk twice in the same line :P
you can go however you like about it, but since there is no penalty to having more rather than less accounts, i would say there isn't much benefit to having 4 chars on an account instead of say...2. You lose twice as many chars per deleted account and depending if you need some lvls before profit, this can set back recovery.