You don't even need to win an elector to make an impact. If the third-party vote in a state is enough to keep either major party from getting a majority, the losing party will consider what they can do to pick up the third-party voters in the future.
Another factor is the volume of products produced and sold. Nintendo probably spent as much or more to design their product than the medical device company. But they are able to divide that cost by 10s of thousands (or more) of products sold as opposed to several hundred of the high-priced systems.
I get the impression that the $75 max only applies to the top tier.