Wow. Thank you for your insightful response, Tacitus.
I was thinking about intrinsic and extrinsic motivations (and what happens when your avocation becomes your vocation). Though I started a bakery, I haven't baked consistently in maybe 6 years. It got to a point where I was feeling resentful of what used to be one of my all time favorite and most relaxing hobbies.
Now, when I do something, say designing jewelry, I only do it as gifts. I refuse to take money because I don't want my motivation to shift. I want to retain that inner joy of doing something for the love of doing it (and seeing the smiles on my friends faces when I present them with a custom piece is payment enough).