I don't recall getting a new product newsletter from Costco. I get a monthly magazine as well as an ad for their monthly sale items.

At the Costco's near me that sell liquor have zero extra space to have a tasting, all of their liquor is on a shelf or on pallets. I have never seen a taste testing for anything other than wine at a liquor store here in MN. I'm sure it could be different in other areas.