Some things never change—traffic is always annoying; the rent is alway too high; a Philadelphia sports event will never be chill . And Costco will always offer its signature hot-dog-and-drink combo for $1.50, the same price it’s been for nearly four decades, regardless of who heads the retailer or what else it sells.

The legendary wiener, along with Costco’s nearly-as-famous $5 rotisserie chicken, are “foundational” to the warehouse chain’s success, Richard Galanti, who stepped down last year as chief financial officer, told Fortune’s Phil Wahba in a deep dive into the warehouse club’s stunning success.

Previously, Galanti told The Wall Street Journal the $1.50 price was “ sacrosanct ,” and declared to investors the dogs’ price point would stay fixed “forever.”

Galanti

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