And they also show what those bits and pieces are, which is actually quite a big deal, because the components often have non-helpful labels on them (like "Apple

And they also show what those bits and pieces are, which is actually quite a big deal, because the components often have non-helpful labels on them (like "Apple" "some internal ID"), which makes it almost impossible to find datasheets on them or source them (say you want to replace a component on the board that you suspect is broken). So not really sure what would have been a big deal if not this..