The white-hot Kirkland Signature golf ball sold by Costco, which rode an insane wave of marketing and good publicity at the end of 2016, is no longer available. We discussed this a bit back in December as everyone was trying to make a run on the $1.25 golf ball for Christmas. It appears Costco is no longer selling them. 
 
 Here is the Wall Street Journal: 
 
 The balls have been out of stock for much of the past two months, save for a few fleeting spurts of availability. Within the past week, Costco removed the listing for them from its website. It is unclear when or even if they will be in stock again. "We don't have a certain amount that we promise to deliver to Costco," said Shim Kwang-Suk, executive director at Nassau's ball plant in Korea. "We produce other products first and deliver to Costco if we have products left." 
 
 So that's pretty interesting. Meanwhile, the balls continue to sell at Titleist ProV1-like figures on eBay. 
 
 This remains a fascinating phenomenon to me. There is no more rabid industry than the golf equipment industry, and that fanatical mindset seems to be fueling a lot of the intrigue here. And now Costco has decided to eject because their ball supplier in Korea doesn't really care about meeting their demand? That seems odd. 
 
 But it also might not be over as one Kirkland Signature believer told the WSJ. 
 
 William Stalsworth, a 61-year-old retiree living in Naples, Fla., said an employee at a nearby Costco store recently told him the balls would be back in stock this spring. To hold him over until then, he paid a private seller $300 for eight dozen. "When Costco gets them back, I'm going to buy enough to last me another 10 years," he said. "And I won't be putting them on eBay." ||||| The hottest golf ball among fanatics doesn't come from a sports shop -- it comes from Costco. WSJ's Brian Costa and Tanya Rivero discuss why golfers fear the balls may not be re-stocked after Costco sold out of them. Photo: Timmy Huynh for The Wall Street Journal
– Costco inadvertently undermined the golf industry and sent golfers into a frenzy when it introduced its own Kirkland Signature line of golf balls last fall, the Wall Street Journal reports. South Korea's Nassau Golf, which makes golf balls for a major golf equipment company TaylorMade, decided to sell some of its leftover balls to Costco. Costco, being Costco, slapped a Kirkland Signature logo on the balls and sold them for $29.99 for two-dozen—one of the cheapest prices for golf balls anywhere. That would've probably been the end of it, except golfers started realizing the balls performed as well as higher-end golf balls, such as the Titleist Pro V1, which sells for $4 per ball. CBS Sports blames what happened next on a combination of an "insane wave of marketing and good publicity" and golfers' "fanatical mindset" about their equipment. The Kirkland Signature balls flew off Costco shelves and have been almost entirely sold out for the past two months. They can, however, be found going for double their retail price on eBay or in the golf bags of people with Costco "connections." As expected, this has not been welcome news for TaylorMade, and Nassau Golf now says it will no longer be selling leftover balls in such high quantities. That means it's unclear if the Kirkland Signature balls will ever again be widely available at Costco.