[fijal]

I think there is a distinction here between "groupon customer" and "business customer" highlighted in that comment that goes beyond the term "bargain hunter". You can still have bargain hunters that would only come to your shop once you display 10% off or once you're selling out stock that did not go away, but they still bring value to your business. That's different than a situation where neverending stream of discounts means you can change your provider as long as you're loyal to groupon.

That might be just word semantics that I'm missing, but I think there is a major distinction.