This. The problem is that Groupon's variety of merchants is very low - I suspect because it's only worthwhile to merchants with an incredibly wide profit margin (e.g., spas or other services that have low variable costs).

I unsubscribed after I kept getting deals I had zero interest in. It seems once in a while they'll get a "big deal" from a well-known merchant to get people back in - but 99% of the deals I've seen from Groupon are utterly useless.