one of the best things about an all pipe install is that new circuits can be pulled in easily and old wires can be replaced without tearing up walls, and it'd probably take half an hour to dig all this foam out of the box/conduit at each location without damaging the wires

Joey-
about the box with the fridge/bedroom recepticals, is there a box that comes open on each end to allow this kind of thing? the only way I could think of doing something like that is bolting two bog extensions together...