It solves a stagnant demand for vending machines and gives a made up growth path for him to take to their investors.
This sounds terrible. If I can't pick up a product and look at the packaging for specs or ingredients before deciding which item to pick, why wouldn't I buy online instead? This is a great way for retail to finally cut one of their last benefits.
Blower fans are better if you want a bunch of cards in one system. Open air coolers dump too much of the hot air back into the case and are usually thicker. For non-gaming loads it's frequently better to have more cards at less than max speed.