規格如下:

Model: HP P1110 (D2847A) (D2847W)
Max Resolution: 1600 x 1200
Sync Type: Seperate
H Freq/ V Freq: 29-121khz / 50-180 hz
Tube Manufacturer:
Monitor Type: Fixed-Frequency
Tube Model:
Tube Size: 21
Connector: 5 BNC

21吋全平面原價美金報價1090吧~美網站(NOT NEW)報價492~459

用了一年多的二手P1110應該花多少錢買算是合理呢?