If this is the case, they probably outright do not want you as a customer.
Significant sales (beyond for excess stock clearance/discontinued items) exist largely to generate some excitement from potential customers and to lure them in to taking a look at the site/store and to hopefully get them to buy some extra stuff that's less discounted while they're there.
The actual on-sale item is potentially losing money for the business or at break-even.
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A person who's running a series of bots like this to track the exact lowest price on the internet for items over time and to always only buy at the lowest price it's ever been sold for....is probably the least likely kind of customer to buy anything extra that's actually profitable for the business.
> If this is the case, they probably outright do not want you as a customer.
Almost certainly! No eComm site wants the cautious shopper that's done their comparisons and knows price trends; they want the impulsive people with a line of credit. I doubt that my local grocery store is happy that I index all of my receipts so I know what I buy, how often and when the prices change so I know when a discount on something I buy every once in a while is actually a discount.
When I built this a few years ago, I had to write a lot of code to make all this work.
Now that's a simple "hey $agent, check the price of https://some-site.com/appliances/that-new-fridge.html and https://other-site.com/shop/appliances/that-new-fridge.aspx daily and notify me when it's on sale or has a promotion"
I would expect that more and more people will discover that their LLM of choice can do this, that their LLM of choice can help them comparison shop and do analysis of when - historically - is the best time to buy that new TV or whatever (yes, pricing on this stuff is seasonal!).
Maybe _most_ people will never do this, maybe I'm wrong. But if i'm not, blocking all bots "because bots are bad, mmmkay" is how you loose a sale.
Ignoring the specific price data example, more and more and more people _are_ browsing the web through an LLM. Assuming that continues, blocking bots is going to have the same effect on your traffic as doing everything in the "what not to do" section of the google SEO guide book.