Mirabile dictu there's something Rob Redmond and I agree on.
You probably also agree with him on the preferability of a bottom-up rather than top-down model of MA organization, in terms of technical innovation and other curricular matters... take a look at this.
I've never really taken a break, but when other parts of my life demand more attention, I'll scale back the MA stuff until those other elements receed a bit. On the other hand, there are other things I enjoy doing, but I realize I'm not enjoying them at the moment so I'll shelve those things. Not a big deal. I can always pick up again where I left off later.
That's something people often seem to forget. Your chosen MA, whatever it is, isn't going away anywhere; you can always find it again...