However, this is the basic rationale between "loss leaders" and "sale prices" that have been common in consumer-targeted sales for decades (or longer). I see n

However, this is the basic rationale between "loss leaders" and "sale prices" that have been common in consumer-targeted sales for decades (or longer). I see no reason to expect this will change. Rather, I see Groupon's primary risk is the simple fact that there will be more and more competition, and this will allow both consumers and retailers more choice, cutting into Groupon's phenomenal margins.