IIRC, like some of the S series Prestige models of the time period, these were made in South Korea rather than Japan (where most of the Prestige line tends to be made). Still very good guitars though that are made to a higher standard than the regular, non-Prestige line.
No idea on prices though to be honest, since they just don't seem to be a particularly common guitar on the used market from what I've seen/know