Even IF slabbing was useful for very old, very scarce, or high value chips, the problem is that the greedy few will never allow it to rest there.

Once ANY kind of slabbing is allowed to gain a toe hold in the hobby, unscrupulous dealers will jump on the PROFIT wagon and slab anything they can make an unjustified profit on, and then add $8 shipping and handling.

NO SLABBING, for ANY chip, EVER, is the only solution.