IF you were following along, you'd know that this was coming.
There are TWO displays - the cardboard one, and the electronic one.
BOTH will be rolled out eventually at Walmart, per Matt's tweet in December (with a visual too!):
Meanwhile, for those not paying attention, Hearing Assist does NOT provide actual hearing aids to Walmart - YET. Their hearing amplifiers go for around $100, which means your point about $5000/store going to a couple hearing aids is INCORRECT. It is actually 40-50 amplifiers per store which makes much more sense.
$INND