Damn, this is exactly what I've been looking for for the last year. Any alternatives?
CamelCamelCamel just compares the current Amazon price to historical Amazon prices.
One site makes it much easier to encourage you to buy on another site, one site makes it much easier to optimize your purchase while still remaining with Amazon.
Looks like being Amazon only may be what is keeping them alive. I enjoy CamelCamelCamel a lot, it's fun to put in a low-ball price target and then months later get an email that it has been met.