I used to think this, but people who just bought a dishwasher are probably somewhat likely to buy another dishwasher, even the same dishwasher, and there only needs to be a tiny fraction of a single percentage chance for it to be worth showing an ad impression.
Presumably even for that tiny fraction of people who buy a dishwasher right after buying a dishwasher there must be a limit to how many times they will repeat the cycle, otherwise ... well, we can imagine the planet Earth completely covered in dishwashers and somewhere under the mass of white cubes, a constant mouse clicking sound and a cry of anguish... Must. BUY. M O R E <clickclickclickclick>.
Well my girlfriend just bought a laptop, it was broken, she returned it, she bought a different laptop, again broken, and now bought a third one. Looking at how many products are DOA nowadays, it might be that a person that just bought something is more likely to buy it again than the average person.
Also in general I've noticed there are a lot of people that return online purchases a lot, even the non broken ones, since you can't determine if the clothing fits, if the colors really look good, if it has a good texture, from pictures and descriptions online.
They may not be good customers, but Google probably gets money per purchase, not for customer quality.
Agree, I bought my first dishwasher a few years ago but it seems like every 15 years or so I buy a new one. It's possibly due to those ads. Just can't help myself!
