Only for the Xbox and honestly just for certain types of games. I mostly play on PC but for some games or older games, I like having a console version. Since the Xbox is the best backwards compatible system, I get a physical copy as a "backup" and something tangible to the digital version on PC. Also, games like Guitar Hero or anything with a license like Teenage Mutant Ninja Turtles, those games have already been pulled digitally. I want physical copies of those games.
Still, for indie, sports or quick pop in and out games, I'll get those digitally unless there's something special about a certain version or if it doesn't have a digital version.
So yeah, there's a lot of double dipping going on but I like having a shelf of games and options. I'd say digital makes more sense for most people these days due to space and convenience but if you are the type who likes to collect, trade or sell off stuff you don't play anymore, physical still has a purpose.