There’s a little riff on SEO Black Hat about abandoning a shopping cart when they display a coupon code box and you don’t have one. I have to say, while I wouldn’t use the language he does, that. Yes. I totally do a search for the coupon code when I see that box. Then I always find an expired code. And. Abandon my shopping cart because I think I could be getting a better deal. You’re not alone.
The cheap bastard I am, I will google for at least 5-10 minutes to find a code. There’s a site that shows how many people have found success using a certain coupon code. But yes, the presence of the box does indicate that you could be getting the same damn thing cheaper than they’re offering it to you, and almost nothing burns more.