A photographer comes into his/her own only when he/she is shooting for fun or making money or doing both. With a Photo walk one can really enjoy with like minded people shooting various subjects, learning from fellow photographers, sharing your knowledge, experience. 

Most importantly coming out with some great images at the end of it promising yourself to be better than the last time. At least that is what my take is. Please share your thoughts too.

BTW: A photo walk can be solo too...