I'm not super familiar, does Honey run any advertisements or recommendations for products? It makes sense why I might pay a blogger affiliate revenue for referring a reader to my product, but I'm not going to pay someone an affiliate link to someone who claims they influenced a purchase decision where the customer is already sitting on the checkout page. If I go to an Amazon product page, will Honey give me a recommendation for a different product that's lower priced?
Let’s say I got to checkout and after tax and shipping the product was too expensive. I use Honey or search for a coupon and the price goes down and I complete a sale.
Did the deal site offer value? Arguable.
They can drive a sale by tracking prices and notify you of a drop in price. That might be one case where they help make a sale that wasn't otherwise going to happen.
This model is substantially similar to RetailMeNot, except Honey will automatically try every coupon they know of for you automatically.