I think a harbinger of this was the fact that the latest console generation did not come with an upgrade in (physical) game medium. Previously, each console generation came with newer cartridges, then with newer disc formats (CD, then DVD, then HD-DVD / Blu Ray). But this generation just stuck with Blu Ray. That signaled to me that this may very well be the last generation to even support physical media. If this cons…
I think the limiting factor is how much hard drive space you want to take up with coresident games. If you use a blue ray, you can load a significant amount of content from disk. Otherwise you're forcing your players to make tradeoffs based on how much space they have left which would cause first releases for a system to have a natural advantage over later releases (sales wise) as HDD space fills up. Edit: Fair enoug…
It should be noted that most AAA games install themselves to disk anyways to help alleviate loading times (especially in the PS4's case, as Blu-Ray is sloooow)