So they get the stock replenished. I guess about 9 people will buy every set available , then jack the price through to roof on eBay. A few dozen people will pay that price and have HPI tires. And then we will wait for over a year or more before a hint at them being released again.
Outside of the crowd down at Valkara, I though most tracks, particularly indoor tracks have already switched over to PF only. So I could be way off base with my prediction, and this one batch of HPI tires just sits in the shelf forever since so very few people can run them