Compared with a clean, testable Tandberg 3002, this asking price is ambitious versus the current used pool: at US$1,892, it sits above the 75th percentile of US$1,694 and well over the median US$1,496, so it is not a bargain on price alone. The only obvious alternative at this level is a fully sorted, ready-to-enjoy preamp, and this listing is for_parts, which makes the premium harder to justify.
That said, the 3002 is a respected vintage preamp from a serious era of hi-fi design, and buyers chase them for the smooth, refined Tandberg presentation and the satisfaction of restoring a well-built classic. If you already have a donor unit or need specific parts, there can be upside in cosmetics, knobs, boards, or connectors, but for a music-first purchase the condition tag means you should value it conservatively and only pay this kind of money if the parts value is genuinely what you need.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.