It's frowned upon to discuss the value of gifts.
Susan receives a high tech and fancy looking bread maker as a wedding gift from her friend Samantha.
Susan wants to find out more about the gift.
Susan asks Samantha where she got the gift.
Susan asks Samantha how much the gift cost.
Samantha is happy to tell her more about the bread maker and how she found it at Bed Bath and Beyond.
Samantha is mildly irritated and finds it inappropriate for Susan to inquire about the gift's cost.