IMHO is just the usual capitalist pressure to maximize profits. You can't make stable profits year-in year-out selling the same widget with the same profit marg

IMHO is just the usual capitalist pressure to maximize profits. You can't make stable profits year-in year-out selling the same widget with the same profit margin, nope - you have to grow. So you either push volume, which inevitably drives quality down; or you push price, which drives quality up but inevitably restricts the audience.