now is able to be purchased on a monthly basis. That means, if you only shop on Amazon during the month of December for Christmas, you can take advantage Prime without paying the entire yearly fee. I personally have a Prime membership that I pay for yearly...and love. For anyone just wanting to try it out (check for a trial first....they often offer those) for just a month can do so without paying out a large amount of money all at once.
If I ever get rid of my yearly membership, this is the way I will go. :)