Amazon is the last place I go if I need to purchase something. Sometimes I'll use it like a search engine and then go off-site and make the purchase elsewhere.
I am the same as you. Although the only difference is:
1. Amazon is the never the cheapest.
2. Their search is absolutely garbage and I can't use it. I'd need to go elsewhere, find a specific product, then search to compare.
I just logged into Amazon and the last thing I bought was 2021 "Leuko Tape" for hiking since it was the only seller that had it at a reasonable price.
I am genuinely always amazed by the responses on HackerNews. It might be because amazon.com is just cheaper in general than amazon.co.uk?