This is late-generation gear rather than a current product, so timing matters mainly because you’re buying a well-regarded older multichannel amp, not because there’s a replacement cycle to chase. At US$849, it sits well above your market anchor: the median comparable is US$464, the 75th percentile is US$553, and this asking price is clearly ambitious rather than merely fair.
What makes it interesting is the P3’s reputation as a stout, musical 5-channel Class AB amplifier with real current delivery and the sort of build quality Tag McLaren was known for. If the unit is clean, fully functional, and ideally includes the original box, manual, or matching accessories, that adds appeal for a buyer who wants a distinctive, serious home-theater amp. At this price, though, you’d want strong condition and proof it’s been well cared for to justify the premium.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.