The problem with the sales pitch is I don't know how much insight Groupon has into the long-term lift they'll give customers (i.e. how much historical data do t

The problem with the sales pitch is I don't know how much insight Groupon has into the long-term lift they'll give customers (i.e. how much historical data do they have?). Groupon's pricing seems like it would have to be a stab in the dark--they can't possibly know the nuances of all the businesses they deal with (massage purchasing behavior will differ from helicopter ride purchases). I feel bad for Mom and Pop operations because a massive increase in sales without proper planning could materially hurt their business.