My early 1980s Campy Super Record derailleurs shift just as precisely as they did back-in-the-day.
My Modolo Pro brakes still stop me just fine.
My Mavic GP-4s laced 3x with DT 15 gauge SS spokes to Campy SR LF hubs are as true as the day I built them in the early 1980s.
My durable Columbus SL steel frame is still stiff and responsive, yet comfortable.
Obsolete? Yeah, but who cares? Not me.