Sure but that doesn't mean that CPU and motherboard can't be used for another system. There are a lot of use cases to just keep an old system around just as a cinema PC or as a retro PC for older games that no longer run on new Windows properly. Obsolete doesn't mean it can no longer be used. Classic cars are obsolete but plenty of people daily drive them still. My 5820k is well and truly obsolete but it still works just fine and runs stuff fine, it's about as good as an i3 these days probably but it works well enough.