eBay is discounting select orders by 10% when you place a $25 (or more) order. The discount maxes out at $10. This one is limited by seller. There is a huge list of sellers participating. I see that Hullabaloo-brew is participating and I’m sure there are other homebrew-related items that qualify for the discount. If you find something good, please leave a comment and let us know.
This type of sale is one of just a couple ways to get around MAP pricing. MAP = Minimum Advertised Price. It’s an agreement that some manufacturers have with retailers to maintain a minimum price. These types of sales are not specific advertisements of homebrew gear and as such are a legitimate way to get around MAP.