Tsai is full of fascinating stories about the changes Kinmen has gone through. He is often interviewed in the media, and even the Discovery Channel asked him to put together a documentary called "Fun Kinmen." Travelers who love photography or have special interests also seek him out to show them "another side of Kinmen."
談及金門的戰地變遷，蔡顯國話匣子一開，全是引人入勝的精采故事，不但媒體喜歡採訪他，就連國際知名的 Discovery 頻道，都請他擔任嚮導，規劃拍攝《瘋金門》紀錄片，一般愛攝影或有特殊需求的遊客，也常指定他導覽，發現「不一樣的金門」。