I recently bought my dog a Kong dog collar and while it's well made (like other Kong products) I was surprised to find that the price for a small dog collar was the same as a large. The Kong leashes were priced the same way.
I bought the dog collar at PetSmart and questioned the cashier about the pricing of the product I was buying and the prices of the larger sizes. I was told the Kong company regulates the prices.
The smaller sizes use less materials and logically it should cost less.
Be weary of the prices and shop around.
I don't know if the cashier was correct but I really don't like paying for something that apparently doesn't make sense.