Whenever one of us says, "but I'm saving X amount at this price" the other says, "Yeah, it's even cheaper not to buy it at all."
This frustrates me at the grocery store when I want to buy MORE of something we always need while it's on SALE while my husband doesn't have the math skills to comprehend that and still only wants me to buy one week's worth. I know the deal will pay off to buy more for less, so I shop without him. But when people buy things they don't need because they are good deals, the line is crossed.
If I NEED an outfit for a specific occasion, and I REALLY don't have one. THEN I will go about finding the best deal I can come up with something that will work, hopefully getting pieces that are timeless and can be worn again etc, so occasionally "deal shopping" is in order.
But I NEVER just go out shopping for fun and convincing myself prices are great once I get there. Or seeing something on sale and THEN deciding I need it. I did when I was young, single and working, but not now that I have no income and I budget for the whole family.
Only you know your budget and your beliefs. Are you ONLY buying things you need, and then on THOSE, you are finding deals? Are you staying afloat easily with NO DEBT?
If you're finding random deals and then shopping accordingly for things you don't need, and carrying credit card debt because of it, you are shopping too much.