Many businesses jump into offering deals on social buying sites without realizing the potential amount of customers it can get them.
The truth is business owners should first of all make sure the deal is worth doing, since sometimes they end up losing money due to the huge amount of people that buy the deal. Besides, getting so many customers all at once, requires businesses to hire extra help, make sure they have enough stock of whatever they sell and basically be ready for handling a lot of people all at once without these disasters happening.
I read a good article on what to take into consideration before jumping into offering a deal in sites like Groupon http://bit.ly/fd0B6E.