Big data you can use...

Big data you can use...  I just ran across the web site CamelCamelCamel for the first time.  After just a few minutes perusing its features, I can tell I'm going to be using it often.

CamelCamelCamel does something that sounds simple enough: for any product on Amazon, it tells you the price history – and will send you alerts when the price of a product you're interested in drops below a value you set.  To do this, CamelCamelCamel had to collect a lot of data.  The products that I looked at this morning had price history going back as much as several years, as well as comparisons to third-party (e.g., not Amazon) vendors.  I'm kind of fanatical about getting the products I want at the best price I can while still getting acceptable levels of customer service.  CamelCamelCamel looks like a huge time saver for me when I'm considering products whose prices I'm not that familiar with...