Maui MoistureDetoxifying + Volcanic Ash Shampoo 13oz (Pack of 2)

I love the scent and I hate how its discontinued outside of Amazon. But why is the shampoo almost 60 dollars when the conditioner is 8 dollars? And for such a small bottle, not worth the price, especially when shampoo is normally 6-10 bucks at a store. LOWER the price it shouldn't be this pricey for a 13 ounce bottle