Bad Marketing?
Telling somebody you're going to cut the price of something by 50% in future is surely not a good way to get them to buy something now.
Furthermore it seems doubly ridiculous to point out that these price cuts are down to projected economies of scale. You may as well tell potential buyers that "if you're stupid enough to pay top dollar now that will mean that future customers will be able to get them much cheaper".
Does anybody really thing that batteries are the way forward? Surely some sort of fuel cell (not necessarilly hydrogen) makes more sense.