The post you refer to was a good example of a business that had intelligently thought through whether Groupon was good for them. Some other special aspects of

The post you refer to was a good example of a business that had intelligently thought through whether Groupon was good for them. Some other special aspects of that case: Due to the nature of the business, the Groupon'ers had to sign in to a slot in the schedule, eliminating the "rush of customers" problem. And, the business had upsell options like souvenir t-shirts to extract some non-discount money from customers.