I agree. Do you have a good set of alternative sources that you know aren't as dodgy? I used to use (and still do sometimes) ones like newegg, but I have no idea whether they're much better
While Amazon may be cheaper I moan for independent book sellers going bust, because they just can't match the prices, let alone the cost structure of the behemoth. And I think they provide a valuable cultural service, which Amazon couldn't care less about.