Compared with buying an ordinary vintage integrated amplifier at this money, US$1,750 is ambitious: it is well above your comparable-listing median of US$196 and 75th percentile of US$447. Even allowing for the SA-9800’s desirability and professional servicing, that price needs unusually strong documentation, excellent cosmetics, and meaningful warranty coverage to make sense.
The SA-9800 is a genuinely special Pioneer: a handsome top-tier design with 100 watts per channel, capable phono stages for both MM and MC, low distortion, substantial build quality, and a distinctive meter display. A thorough service can add real value, especially if it covers power-supply parts, controls, bias, protection circuitry, and output-stage testing. Still, “serviced” is too vague at this premium; request an itemized repair history, test results, and confirmation that all meters, switches, lamps, and inputs work. At US$1,750, this is a collector-grade purchase, not a typical market bargain.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.