I buy plenty of content from Amazon (video, kindle, audible) but I'm increasingly reluctant to use Amazon for physical products - I rarely buy paper books and when I do its usually from an actual bookshop (maybe 4 physical books last year compared to about 30 from audible and maybe 20 on kindle). I certainly wouldn't use them for anything over £50 or so - I'd go straight to a dedicated retailer that I have more confidence in.