I saw Groupon as an investment , I am not working week on week for a wage ,and dont measure success by the week , but by what I sell the business for after 4 or 5 years. Groupon has given me a workable database . I fitted the joobs round my regular insurance work , when I would have been idle , so my costs were minimal.
As has been said it is not for everyone, but if you are sat doing nothing , you will make at least a decent wage getting out there , and then ongoing repeat referral work.