(i think) when OP says "eliminating that fee is a drop in the bucket", they mean that sellers who switch from FBA to FBM would no longer need to pay (eliminate)

(i think) when OP says "eliminating that fee is a drop in the bucket", they mean that sellers who switch from FBA to FBM would no longer need to pay (eliminate) the FBA fee... but saving $40/yr isn't much of an incentive when you suddenly have to deal with all your shipping yourself.