The AirPorts still run fine and it’s one of the best things from the Apple ecosystem that got axed. They weren’t too expensive at the time.
Apple made a few mistakes over the years like the Time Capsule that corrupted a backup after 18 months and the iOS style Utility app on macOS that made it inferior to the old style app and removed some great features.
Router or Access Point setup from a lot of brands still tails Airport by 20 years, it’s a damn shame. Only Unifi stuff works as good and is manageable like Airport was. When Apple got back in the screen business I was hoping they would revive Airport too, but this seems like one last goodbye.