Sadly everyone is trying to copy Amazon's worst trait and it's hard to find an online store that doesn't have a 3rd party marketplace.
There's a HUGE opportunity for retailers to become Amazon alternatives, but they keep copying Amazon instead of trying to be better than Amazon. Remind me why all these visionless CEOs deserve so much money.
I guess I should have figured out something was up when I was browsing for a Raspberry Pi and got a snow shovel as "frequently bought together" right after a snow storm where I happen to live. I mean, maybe (?), but how many people are logging in to buy a Pi and a shovel?
In all these other places there is a contention between getting the customer exactly what they might want (discovery) and getting the customer to buy what you want. Note that stores want the customer to buy items that will most cost them (overstock) as well as items that will most profit them.
This way the store manages this contention becomes a key part of its public image / brand, and affects its long term perception and customer base.
How this heavy push from personalised recommendations to personalised advertising will affect amazon is going to be interesting.
eBay (mentioned in the article) has gotten pretty bad in this way lately. There are plenty of categories where the sponsored listings are a tiny or non-representative subset of the whole.
So if you start browsing by jumping from suggestion to suggestion, you rapidly exhaust the available paid listings. Will customers recognize they aren't seeing everything, then continue to dig and search to find more, or will they decide they're out of luck and leave?
I could imagine tweaking it to a feed where paid listings are n times more likely to be shown, but filling in a few slots from random unadvertised products in the category.