1. Epi 100 speakers ... $140/pair on sale in 1978... still going strong, after a woofer refoam and putting in a new simple crossover capacitor. A timeless classic from Epicure that puts many larger and far more expensive speakers to shame, to this day.
2. Onkyo Integra TX88 receiver, from 1986. NYT magazine’s "Best Receiver of 1986" ... bought it for $80, used, fifteen years ago. Still going strong: rich, powerful, clear... real knobs and a tuner, too.