Purely a hobby for me, but I do not feel that it is very expensive. My latest purchase was an FM2n that was around $200. I've bought bulk film and develop it myself. Got my enlarger off Craig's list and almost everything else is DIY. I think I will spend a lot more money on photo paper eventually.. that's probably where my biggest expense will be. Still, including 6 or 7 bulk spools of film and everything else, I don't think I've spent as much as my unmentionable camera cost me, and I've got enough supplies to go for a long time.