At €5,800, this sits well above your recent comparable market: the median is €2,917 and even the 75th percentile is only €4,320, so this is an ambitious ask rather than a fair-market one. For a buyer, that means you’re paying a clear premium over the typical used range, and I’d want either exceptional condition, unusually strong provenance, or scarce included extras to justify it.
That said, this is a serious high-end cable with a strong reputation for revealing top-end systems: the pay-off is usually more resolution, openness, and control than any dramatic tonal change. If the condition is truly good and the original packaging, invoice, and correct length/spec are all present, it can still make sense for someone already committed to the brand or matching it in a reference setup.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.