My terse answer to, 'Why not use AI to shop for [X]' is that if you are letting AI do the shopping for you at any level, you aren't actually distinguishing products by features or quality or it's ability to solve a problem. You are being fed junk that is likely paid to be moved to the top of the list.
It's probably a nice feeling when you can put in a list of soft requirements to ChatGPT et al and get a list of things it recommends, but I would suggest you are a fool if you think those listings aren't bought and paid for.
In an era where the gap between a 'good product' and a 'bad product' is growing ever larger and the price is not an indicator of anything, the onus to actually become knowledgeable re: "How to identify products worth buying" is becoming greater and greater. If you are using AI to do the shopping for you, not only are you not building that muscle, you are actively weakening it as a chatbot convincingly recommends something to you based on unverifiable platitudes about 'quality' and 'value' - a recommendation that was, again, bought and paid for.
So yeah, that's gross and I would argue pretty strongly that it's just as brain rot adjacent as something like Tiktok. Like Tiktok though, I expect it will see at least some level of popular use, and also like Tiktok, I think it'll end up making the population dumber on average.
I can very clearly imagine it always going for branded products where brand is not required, unless specifically prompted not to, which the average person won't do.
> I need dishwasher tablets
Could mean buy a 30 pack for £25 which have all the marketing buzz surrounding them, or buy the own brand 45 pack for £5 which does the job just as well.
> being fed junk
As if the products you find in mass market brick'n'mortar stores are any different.
> I would suggest you are a fool if you think those listings aren't bought and paid for.
At no point in the process did ChatGPT direct me to any listings. I fed it my criteria, and it gave back a text response listing car models that met my criteria. The only links it included were links to reddit posts and other car reviews. And the results were useful to me because they pointed out where my own pre-existing biases had caused me to overlook one model that I probably should have paid more attention to.
What you are suggesting feels more like a potential future threat than my actual experience thus far.
I found the listings by conducting a separate search on a used car listing website - and the number of matches that met my criteria were small enough that I was basically able to look exhaustively through all the matches. But shopping for used cars can be a little confusing at times because there are a lot of different configurations that change every year. Sometimes the listing might just say something like "2022 Touring, Safety Package" and include a bunch of photos - and identifying whether a given listing has a particular feature you are looking for requires some investigation (ideally they would include a full list of options, but often times they don't). Or often times the listing itself might contain incorrect information. And I found ChatGPT to be a useful tool for quickly making sense of the various configurations, and of course conduct my own sanity checks to be sure the information is not hallucinated.
I'm not suggesting you should solely rely on AI for shopping (although in some cases for low-risk purchases it may be fine) - but rather as an additional tool to aid in research and decision making.