In the guitar world, a 30-year-old guitar is now considered vintage. If 30 years is considered vintage for audio gear, then most of my analog system is vintage, and I suspect it is comparable in sound quality to most modern gear, and probably more durable--SOTA Star Sapphire TT with ET-2 arm, Classé Audio electronics, Nakamichi cassette decks, Luxman tuner (that I rarely use anymore), and upgraded Apogee Duetta II speakers.
I guess I'm the rare audiophile that is satisfied with his system long-term. I have made many digital upgrades, however, as I realize that digital technology is improving more rapidly, with better sound quality available at decreasing prices, compared to 30 years ago.