If you know the price of what you're buying outside of Groupon's system you can often find excellent deals here. But sometimes they will overinflate the "retail" or "MSRP" price to many times what you can find online in order to make it seem like you're getting an amazing deal. Yes, sometimes you really can get a great deal, but you have to be educated about what you're buying and dont make impulse purchases whenever you see something is "80% off" for example..