I think if he already offered a 90$ drop on the 120/4 this was already a very decent offer. 400$ is quite a good price for a 120/4 CF (if it is in good condition). Itīs definitely a lot better than spending 350$ on a 80/2,8 C T*. KEH has listed some 120s in the 750-900$ range. It is a superb lens for portraiture, though not so well suited as an allround lens, since it is more like 75mm on a 35mm camera. I would not judge before Iīve seen it though...