This makes me wonder, sure there is a large investment cost in creating many of those things. But is the Maintence/upgrade cost (particularly for things like th

This makes me wonder, sure there is a large investment cost in creating many of those things. But is the Maintence/upgrade cost (particularly for things like the modems) the same or less than the investment to do it in the first place? If they are going to own as much of the internal hardware as they clearly want to, they have to be ready to continue to innovate or risk falling behind. I ask because I legitimately don't know the answer, but its something I have been curious about.