Just to mention: you can use camelcamelcamel.com to track a price as listed at Amazon.com, as the item is listed on an Amazon.com product page. Not fooproof, but helpful. :). Source: 6 months ago

Go to camelcamelcamel.com and there you can see Amazon price changes through time. Just put the ASIN number in the search and you'll see price changes. Source: 7 months ago

For historical pricing, please use sites like https://camelcamelcamel.com/ or search the subreddit history. Source: 8 months ago

Just curious, for Amazon specifically does this service capture price changes that don't appear on https://camelcamelcamel.com? - Source: Hacker News / 8 months ago

Loads normally, no delay or blocking - https://camelcamelcamel.com/. - Source: Hacker News / 10 months ago

Check livingsocial.com but always read reviews. Memberships to stuff are nice, I did a zoo membership and an aquarium membership with my wife a couple years. The aquarium was very nice at the time because she worked in Peachtree center, so I surprised her getting off work a number of days and we walked there after. Source: over 1 year ago