A number of the big studios are over 50% digital sales now iirc, many people simply don't need the drive, and of course Sony has their own incentives to push it.
Game Sales Are Leaning More and More Towards Digital as Sony Reports Huge PlayStation Store Success
The inevitable
www.pushsquare.com
"We've known for some time that game sales are starting to skew more and more towards digital over physical, and Sony's latest stats reinforce this trend to a significant degree. A staggering 91 million PS4 games were sold during the first quarter of fiscal year 2020, and a huge 74 per cent of those sales were made through the PlayStation Store."
It's the SKU I'd buy.