Has group buying jumped the shark?

After all, if you're a consumer, another great deal is always around the corner, so why ever pay full price? Other local businesses offering the same products or services will always have deals of their own. Just wait a few days. Further, as more and more businesses discount for the likes of Groupon, they erode their own perceived value, and destroy their own pricing power.

This is a superb piece by econsultancy. I've been starting to have similar thoughts recently.

And this article is just about the problems on the vendor side. What about buyer-fatigue on all this deal-of-the-day stuff?