Exactly. I have sneeky feeling the metrics would suggest a lack in customer retintion. In all honesty, the personal complaints I have heard myself from buisnesses regarding Groupon mostly pertain to calibur of the new customers. We used a Groupon (Yes, I'm cheap, we tried Groupn a lot), for a hotair balloon ride in wine country. After our wonderful ride, we tipped the the guide. The guide mentioned we were the first "Grouponers" to ever tip him, despite a notice printed on the vouchers notifing customers gratuity was not included (which implies a gratuity should be given). We had a similar experience on a Groupon harbor cruise, except there the staff thanked us for not getting "wasted". I can only imagine how waitresses must feel.
