Are Groupon deals worth it? (團購網 Groupon 沒誠意! 氣壞商家與會員)

http://www.nma.tv/ As social marketer Groupon prepares for an IPO, some businesses are starting to wonder whether giving away their stuff at such huge discounts is such a great idea after all. But what can one expect from a company that produced this uber-tasteless Super Bowl ad: http://www.youtube.com/watch?v=vVkFT2yjk0A http://www.nma.tv/businesses-start-question-groupon-model/