I want to know if there is an Aweber alternative offering about the same features but with a lower monthly rate.
There are same Aweber white labels that are cheaper but you will probably not get the same support and reliability. Also, there are many that will let you use there service for free if your subscribers list is small.
It all depends on your needs, amount of subscribers to your mailing list and the reliability you are looking for. The cheaper ones may no be as good...