Perhaps when you are as rich as she is there is no difference between a $20 bag and a $20 000 bag. (I know this is about the suit but she also has fake bags).
In a previous thread someone said that she is quoted as saying something about not caring if it'e real or not - if she likes it she'll buy it.
Like if someone said to me (putting it in terms of what is probably as cheap to me as LV is cheap to her)- you know that shirt is a fake 'Wal Mart' shirt I'd be like - meh - whatever - I like it.
Also - in her book about being an heiress she says that she would never eat cavier because it is so cliche. Gives kind of an idea of her thoughts on money.