I just updated "GrandPrix Race Manager" for $25 from the vendor. It's an annual cost for my local derby thing. No idea how many copies they sell, but it's on ve

I just updated "GrandPrix Race Manager" for $25 from the vendor. It's an annual cost for my local derby thing. No idea how many copies they sell, but it's on version 24, so they must be doing OK-ish. Stand-alone Python application.