At A$1,850, this sits a touch above the 75th percentile of your recent AUD comps, so it reads as slightly ambitious rather than a bargain; it’s not wildly out of line, but it’s above the “easy yes” zone versus the A$1,638 median and A$1,846 upper quartile.
That said, the Altair G1 is a well-regarded digital hub/streamer/DAC: it’s the sort of box people buy for its clean, refined presentation, flexible inputs, and genuinely useful all-in-one functionality. If the unit is clean, complete, and from a careful owner, the appeal is convenience without giving up serious sound quality; at this price, I’d want original packaging, remote, and proof it’s been kept in good order, but there’s no obvious line-item red flag if those basics check out.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.