The big question is do you want a Kindle for reading, or do you want a tablet for surfing? Which is your primary use?
I weighed pros/cons of each and chose a Kindle Touch, yes I would like a tablet someday, but if I'm going to get a tablet, I plan to go all out and get a tablet. Right now I wanted something to read books on, and if that is going to be your main use, I would stick with the Touch because of the eInk display. The Kindle Fire is like a computer screen and is harder on your eyes if you plan to spend hours reading on it.