No monthly fee on any Kindle. You need wi fi for the Fire (home, library, coffee shop, anywhere with wi fi) and the others will connect to a computer that has internet. The 3G will connect on it's own without computer in any cell phone area. If you have the Kindle with external keyboard it is becoming a rare collectible, do not get rid of it too soon.
Last edited by BellaBoo; 05-17-2012 at 10:32 PM.