I refuse to go with convenience over quality. Thankfully with music and games, they've gotten there. Movies...nope.
Music - I have everything in FLAC. Same quality as CD, relatively small files, backed up several times and DNR free. I can downconvert the master files into MP3s for other devices if needed
Games - I'm mostly a PC gamer but I get all of the consoles too. Digital games are the same as the physical version and nowadays, the physical version is pointless since it just installs, has to download patches and is only used as a license key. Nothing plays from the disc anymore. With Steam, it's been around forever, has never screwed me out of anything and looks to have a good future. Sony also has a good track record of digital content. Nintendo however, has an absolutely abysmal record for digital and will close shops, remove games and remove your purchases. I buy Switch games physically since you play them directly off the card and you aren't beholden to Nintendo.
Movies - This is the big one. Unlike music, movies just have so much going on. Tons of different audio options, commentary, special features, HDR (for UHD). Not only that but the file sizes are huge. You're talking 100GB for a single movie and since I like to collect, I'd want to keep that movie forever. I can easily back up my music but movies would require a huge number of hard drives and a lot of work. Not to mention, where are you going to find a digital copy of a movie that is 1:1 copy of a disc? You're not. It's going to be compressed and may not have all of the features. With digital, I'm beholden to streaming services and we've seen countless of those fail already. The price is not cheap and it's going to be compressed and use up your internet bandwidth streaming huge 4K files.
Ironically, having a movie on disc is the convenient way to me - not digital like the others. It's cheap, it's easy to store on a shelf, it looks nice and it's a perfect copy. It's not like a CD where I might want to listen to several different songs. If I'm going to watch a movie, I'm going to be on my couch for 2 hours. There's nothing inconvenient about popping in a disc, sitting down and watching it. I can probably do that faster than scrolling through a streaming service and deciding what to watch.
Quality always matters to me the most and if there ever came a time where I could get a perfect 1:1 copy of a movie in a digital file without DRM, then I'd switch. I just don't see that happening though.