said by nunya:I learned a long time ago that 20 cu in boxes have to be the new normal. For me, it's worth the extra nickel not to have to fight everything in. Of course, GFCI's get 22 cu in boxes.
My warning was directed to those who still have the old normal and read the specs of the device, measure their box and go "great it will fit" only to find out after ordering one that there is no way without replacing the box. I agree with you, if I'm installing a new box it is going to be big.