A farmer who is willing to convert his land into a series of lily ponds can earn as much as US $ 25,000 a year.
換句話說，農友以收成不好的果園廢地來養殖牛蛙，如果有五成到八成的存活率，每年每分地能淨賺三○萬元到一百萬元不等。然而在民國十三年，牛蛙初由美國引進台灣時，行情並沒有現在這般看好。