Very few businesses have 50%+ margins so they can afford to waste 30% paying Apple or Google for hosting a few MBs of a file. I can imagine that App Store 'tax'

Very few businesses have 50%+ margins so they can afford to waste 30% paying Apple or Google for hosting a few MBs of a file. I can imagine that App Store 'tax' to go down to 15-20% in the near future and stay at that level for the next decade.