If I ever win the lottery, i'm buying every copy of those slabs that come in too many 9.8s and taking them all out to send the labels back to CGC just to lower the census.
Too many 9.8s for issues like TWD1, NM98, IH181. If you ever watched the Jet Li movie "the one" you'll know what happens next.
Otherwise, like what many have already said before in this thread. Addittionally, if there were ever an environmental hazard (fire, earthquake, etc.) I would rather carry 100 unslabbed copies than 100 cgc slabs out the door.