I've got a Kanetsune KC-702 210 carbon yo-gyuoto for less than €60, including 21% VAT. Decent knives, but the edge requires some serious work with a really coarse stone. You may shorten the job by starting with sandpaper instead. Comes with a chisel grind which should be more balanced to match the dominant face, and is far too thick immediately behind the edge, especially after correcting its geometry. A little hour to remediate. Very comfortable handle. Even if you normally don't care, it's a nice feature when sharpening (thank you for pointing this out,
@stringer !).
Nice, to me unknown steel. Takes and holds a fine highly polished edge while keeping its bite. Something in the 60‐61Rc range.