Anyway prices change. So it’s unfair to publicize that X retailer’s Something is less than Y retailer’s Something.
Tomorrow it could be the opposite. Or the store has other incentives anyway that would actually make the buyer’s overall purchase less than the retailer who supposedly had a lower sale price on the item.
It’s advertising here in a sense and making comparisons doesn’t give a fair representation to the store. This isn’t Yelp.