Why does Amazon think that someone who spent $50 on a shop vac is now in the market for a $700 Dyson?

Because their “algorithms” suck. Their “ML/AI” recommendation engine garbage sucks ass. I have no idea why publications or companies think this is in any way a better form of advertising than just…recommending things related to what you’re watching / reading / listening to…but hey…I guess it at least allows them to spy on everything you ever do anywhere on the Internet and then try to join that up to what you do in real life through phone data, so the ends justify the means I guess.

EDIT: In addition to it sucking, it’s largely irrelevant and likely prevents some sales from occurring. If I’m listening to a lot of a certain rock band…I’d likely want to know if they’re touring and may be unaware of that fact…but nah, gotta push people to buy another vacuum or whatever instead.