From time to time I see references to pipe smoking as a hobby. Everything is subject to personal definition, but for me pipe smoking is something I do, something I enjoy. I also enjoy eating steak, walking on the beach and playing games with the granddaughter -- but I don't regard those activities as hobbies either. To me a hobby is like collecting coins, woodworking or building model trains -- to name a few of the many hobbies people enjoy. When it comes to pipes if one collects pipes, even if part of PAD to add to an ever increasing rotation, that can be a hobby. Also restoring pipes and/or modifying pipes can be a hobby. (It can also be a business AND a hobby in some cases.) Collecting and cellaring tobacco can be a hobby and the trading of pipes and tobacco that result from any of these activities can also be considered a hobby. But the smoking part -- I just have trouble thinking of that as a hobby.