Ugh, unfortunately Amazon makes this way harder than it should be. There is no button on the site, which is super frustrating when you are trying to save a buck for a gift. I always use CamelCamelCamel or the Keepa extension. Keepas UI is kinda messy and not as good as I expected, but it works. Honestly, car seat prices swing like crazy. TL;DR: Use CamelCamelCamel or Keepa to track history.

I have been using data trackers for a long time now because the price volatility on those listings is just insane. Honestly, I'm pretty satisfied with my current setup where I let a browser extension handle the heavy lifting for me. I remember when I was hunting for a specific high-end networking kit last year. I didnt want to guess if the price was fair, I needed the actual data points. I ended up using a price drop tool to map out the last year of pricing history. It was super interesting to see the cycles and how the price would jump right before holidays. Technically, these tools just scrape the site data or pull from an API every few hours to log the changes. It works well because you can see the new price versus used or third-party data, which is crucial if you care about the warranty. I'm happy with how accurate the charts are these days. For your car seat, you really want to check the average price over the last six months or so. If the current price tag is way above the mean, you're getting ripped off. I usually just set a price trigger for 10% below the average and wait for the email. No complaints with that strategy so far, it has saved me a lot on server parts and home gear. Just stick to the shipped and sold by Amazon data so the numbers dont get skewed by random third-party sellers.