>limited space on console

Doesn't matter, games are installed and ran entirely from the internal drive, and have done since the PS4/Xbox One.

That said, I like the flexibility. I'm not bound to the consoles store, I'm also more inclined to try out new games if I can resell it in the event it's a stinker. And with console games getting more expensive, buying at launch on a physical format makes sense. I'm not gonna play say God of War Ragnorok more than once in quick succession, so I'll sell it when done (and buy The Callisto Protocol).

It's also about ownership, and preferring the tactility of having something in your hand.