"Get off my lawn" comment incoming :) Once upon a time, there were some very large and very profitable companies whose business centered around "coupons". The

"Get off my lawn" comment incoming :) Once upon a time, there were some very large and very profitable companies whose business centered around "coupons". The difference is that they used to come in your mailbox, and companies paid for inclusion as a means of advertising. This was a very popular business model in the direct mail industry, which could be viewed as a precursor to many of today's internet business models. So, there are plenty of institutional investors over the age of 40 who saw the Groupon business as something recognizable, and decided to invest, because we like to invest in what we know. I can't believe I thought history was a boring subject in school. These days, the empowerment of just a little history goes a long way.