Who cares what people call it. I've only had 1 or 2 "pure" MR's this year where I did either same-day or overnight(red-eye) turnarounds, many of them back on the same plane. THe only time I went landside was to smoke a cigarette and get some air (I can see how this may read funny).
MR/vacation combos are more what I do, though they are short vacations (a day or two).Of course they screw up the bottom line CPM calculation but they are quite wnjoyable and allow me to see many places. I figure I'm already there, why not leave a day later and do some exploring?
But hey, YMMV.