I go out of my way to make every copy of every game I own as digital as possible to the extent of installing custom firmware on my 3DS and PSP to play games off the SD, copying disks as ISOs to play with a virtual disk drive, I even got a Gameboy flashcart to play original Gameboy games off an SD card in a custom cartridge.
It's not that I don't like physical copies (I sort of collect Gameboy games after all), it's just that if I want to play a game I want it to be right there built in without having to carry my games with me/find them, there's no risk of them being damaged or lost, I don't have to swap them out or face the potential risk of misreading disks/poor cartridge connection etc.
So I like physical copies as much as anyone else as they're just nice to own, but when it comes to the practical side of things and actually playing them I don't see the advantage of physical copies apart from the supposed risk of services like Steam becoming inaccessible, but this doesn't apply to most cases of digital copies and I doubt it would happen anyway. I suppose there's the problem of the single point of failure being your hard drive/device which would wipe all of your games if it broke, but honestly I think it's much more likely for hundreds of game CDs to break before your hard drive fails.