My wife loves the BX. While she does use the L5740 occasionally to bush hog while I am bush hogging with the M8540, we often need to have both tractors going and sometimes even three with my son/s, she is more comfortable with the smaller tractors.
We have quite a few walking/ATV trails and occasionally a tree or something closes the trail, washout etc. She has never been comfortable installing/removing the FEL, box scraper, blade or rotary cutter and she prefers o mow without the FEL as do I. So by having an "up-armored", wide wheeled BX with the FEL and some ballast on it, she can just hop off her BX2660, move trees, dig dirt, push stuff, cut down some briars, weeds etc. then hop back on her other BX and mow the yard etc.
That way she doesn't have to wait for me or one of our sons to put the FEL and ballast on, do the work then come back and do reverse order.
We have a couple of barns and quite a few sheds and the BX really helps to move stuff around in there and to maintain the crushed rock.
We are also both in our sixties and a self propelled wheel barrow sure is nice.