Don't get me wrong; I truly do dig those who have many varied hobbies… but that's not my style. I cannot "tinker," though to my wife I'm sure much of what I do—and the resulting mess I leave in my wake—seems to run counter to this claim.
I am a "puzzlist" (new word, you're welcome). I have a compulsion to solve for (x), find & place the pieces that show the bigger picture. If I pick up a new project or I want to learn a new technique, I'm not picking up a new hobby or tinkering; I am legitimately trying to solve a problem—even if that solution (x) is my own curiosity.
A thinker is creating a path to a solution thru ideation, process, concept and completion. So even if you call yourself a "hobbyist," if you have a pension for finishing even a 1-off project due to an insatiable urge to solve the equation… give yourself credit, because you are so much more. Go solve for (x) today!
Love you… Say it back! ;-)