NPCs are like magic items, you can never have enough options as a DM. Whether you build an entire story thread around them using their provided plot hooks, make your own, or just grab one quickly when you have your very own Sam Smorkle moment. FoFF gives you LOTS of options to work with and some great artwork which bring the characters to life. Although the interior art is B&W, the quality of it is just so high that it shouldn't be seen as a loss.