j'onn (as you all prob know) is one of my favorite superheros - ever. keeping him cooped up in the watchtower would not be portraying his character correctly. i mean, if the JL approached J'onn and said "yea...um - were gonna have to ask to keep you on watchtower duty...umm..forever..yea.." come on - lol I think if that happened J'onn would just quit the league all together.
not to mention, with all of the powers that J'onn has, he should be the LAST one on monitor duty. put like Dove up there lol. give J'onn a break.
Your memory is a monster; you forget - it doesnt. It simply files things away. It keeps things for you, or hides things from you - and summons them to your recall with a will of its own. You think you have a memory; but it has you!
- John Irving
"A Prayer For Owen Meany"