MSI GX660R I7 740QM640G 7200rpm HHD6GB RAMATI 5870 1G顯卡15.6 1920*1080螢幕Blu-Ray 光碟機在英國購買的,有全球保固,但是買快一年了大概有8-9成新這樣到網路上賣行情約多少?