This is the main 'thing' I have with CD/DVDs. You get a solid state of a game. The game will never change.
I recently reviewed Serpents in the Staglands, a game which can only be purchased digitally, and while I enjoyed my time with the game, everything I said about it and every detail in how I experienced the game is likely vastly different to the experience the version 0.1 people played and will likely be vastly different to the game the version 0.25 people will play.
With digital games the urge to tinker is so strong. Initially it's quite positive, in that it's mainly bugs that get sorted, but there's always the endless 'balance' changes that get thrown in the mix. So when you load it up again, you get the patches for the bug-fixes but also find out you have to completely relearn all the 'tricks' you employed (and enjoyed) the first time. Like the guy who performed a speed-run in 30 minutes or whatever, only for his 'exploit' to be removed in a later patch.
With the on-line only games like Path of Exile etc, the player has no control whatsoever on whether their charatcer is OP one minute or unplayably weak the next. With my old disc of Icewind Dale, I know which version I have. I know everything about the game and can tailor my experience to exactly what it is I want to play, from obscenely overpowered to mind-numbingly frustratingly difficult. I can play with or without the game-changing expansion and I know when and where all the bugs are, and with predictability comes avoidability/exploitability.
With digital games the experience is as throwaway as the wrapping the old discs were packaged in. You can never be entirely adept with the game to the point where it's you who decides what should or shouldn't be OP, it's always going to be some forum junkie a world away who persuades the devs of said game that the Bow of Disintegration needs halving in attack strength and that the Elf Candlestick Maker needs their baking bonus halved.
As Alrik says, there's something appealing about the sense of a concrete imprint.