The estimator is AI-Overview-proof. The comparison post isn't.

The comparison post used to be the money page. "Best X for Y," "A vs B." High intent, the researcher one click from buying. For a niche affiliate site, that page was the whole model.

AI Overviews ate it. Through 2024 and 2025 Google started answering those exact queries in the SERP, with a summary good enough that the researcher never clicks. The damage is asymmetric. A retailer at DA 70 with direct traffic and a brand absorbs the lost clicks. A new site at DA 0 that depends entirely on organic has no fallback, and by the time it ranks, the Overview coverage has usually spread further. This is structural, not a fluctuation you wait out.

Here's the part that's still winnable. Google can summarize text. It cannot run your calculator.

"How much does a 1967 Mustang restoration cost" is an informational query, and an Overview answers it from existing content. "Mustang restoration cost estimator," or "calculate my restoration cost," is a different intent. It needs four inputs (year, condition, scope, budget) and a session. No snippet satisfies it, because the answer doesn't exist until the user supplies the inputs. The tool is immune to the thing killing the guide page.

That changes the architecture. The estimator becomes the hub, not a feature in the sidebar. Guide pages stop being the destination and become feeders: they catch research-phase traffic and route it to the tool at every opportunity. Tool-intent queries are also more winnable on a young domain, where top three inside a year is realistic and the head term takes two.

The lesson generalizes past cars. When the SERP can answer your page, your page is a commodity. Build the thing on your site that requires the user to do something, and the SERP has nothing to copy.