I think for me, the more everyday a purchase is, the less I care about if the purchase goes wrong in some small way?

I do see where you’re coming from, though - I’ve many times gone through the process of:

“I wonder if amazon has any <niche item>?”

...

“Oh, Amazon has literally dozens of different <niche item>s, cool”

In Germany they're mostly just as quick to deliver and sane return policies are required by federal/european law. And most importantly their inventory is way better - organized, curated, categorized and genuine.

For me, I still prefer Amazon if it is a high value item, I check the seller though. I prefer to have my contact information/payment information stored by a company I can trust to keep it safe and in as few places as possible.

It worked perfectly as I got it, and the model had been on the market past the early peak of the bathtub curve, so I kept it. Still works perfectly today, too. But it taught me a valuable lesson about how far Amazon can be trusted on high-ticket items.

These days the only camera gear I get from Amazon is trivial niche stuff like eyepiece diopters that aren't worth anyone's trouble to gray-market or counterfeit. For everything else, there's my local camera store, or B&H or Adorama.

What do you base that statement on? I order lots of stuff from Amazon and almost all of it is sold by Amazon and not a third-party. Sometimes I do have to pick Amazon from the list of alternate sellers.