What is the benefit of BoM exactly, besides salvaging old skins?

[Mollymews]

6 hours ago, Ayeleeon said:

Maybe very few use system layer clothing, but there is also tattoos, makeup, freckles, tan lines, blemishes, and any number of other things that people might want on thier body, al of these are so much easier to put on and take off.

this is me.  I wear at least 16 layers 

and more when I add eyeliner, double eyeshadow, double lippy, blush, double tops, etc

put them all on, save as outfit (which creates one baked texture for my avatar) and done easy