I don't have a Kindle either so I cannot relate to that issue. But I am sorry for how it is affecting them.
Every Christmas and Birthday I am a heavy purchaser from amazon.ca, though, for books and cds.
If I spend over 25 dollars shipping is free, the prices are insanely low compared to the in-person prices, and I hate hate hate in person shopping! I buy boring classic clothes and wear them until they wear out, (I "glam up" with hand knit accessories) and if I didn't have to feed my family, the only place a person would see me is church