I agree with Nikanon. My interest in photography started in about 1975. I started developing and printing B&W in High School around 1976, moved to making Cibacrhome prints, and processing my own E4 then E6 slides. Moved to digital in about 2001, and in 2009 I got bit by the Analogue bug, started buying Franka Rolfix 6x9 folders, a Bronica ETRS system, and adding to my Nikon 35mm system, as well as establishing my own "wet" darkroom again. I can print up to 16x20, mat it, and dry mount it myself (thank God for Evilb@y and Craigslist).
One of my initial interests in photography was the fact that I could roll (film you guys) and load my own, study it, shoot it, develop it, print it and realize I had created something from start to finish. How many of our regular jobs offer the same sense of accomplishment? Personally, I am currently 47 with just over 20 years continuous service to the U.S. Army, and though I am frequently in the planning process of training events as well as deployment operations, I rarely get to see a project through from start to finish. I suspect that most people working a "regular job" assemble part of a widget, or initiate a project, or work on a project at certain points, but rarely get the opportunity to say "I made it myself".
My wife would say that this need to accomplish something on my own is a "control issue", but I have no idea what she is talking about...it is though she speaks a foreign language sometimes.