Today I Learned that Costco's hot dog has remained $1.50 since it was first introduced in 1984

Incredibly, the hot dog and soda combo at Costco has sold for the same $1.50 since the retail club first introduced the dogs to customers in 1984. Accounting for inflation, it should sell for about $4.25.

MentalFloss writes about it here: https://www.mentalfloss.com/article/547020/costco-150-hot-dog-soda-combo-enigma