Comment by phantasmish

Like vertical integration isn't always bad 100% of the time, but this particular case of marrying distribution and production seems to serve minimal beneficial purpose and inevitably the main outcome is high levels of rents-collection and squeezing the people doing the actual creative work. There's pretty much nothing but up-side to forcing the two roles to remain separate.

It's probably got something to do with copyright. Like the way it interacts with markets makes this sort of arrangement net-harmful pretty much any time you see it.