I don't mind devices that have "smarts" added (e.g. wireless audio can be convenience even if I have to have a wire for power) but I despise devices which don't check the "dumb" boxes before trying to be "smart". Sonos speakers are like you say, there are even plenty of Sonos models with line in but you still need to set them up in app. Getting smart devices without that kind of functionality is like getting a TV without an HDMI input - even if you don't think you'd need it day 1 you'll likely one day regret it.