If it's a local company, someone told me that instead of buying through groupon, call the company directly and ask if they will offer the groupon price without the actual groupon. Apparently it saves them a bit of money as they don't have to give the discount AND pay groupon. Like I a said, someone told me this, I've never tried it myself.
Make sure you read the fine print and everything, but I don't see anything wrong with it, especially if it is exactly what you're looking for!