Why, oh why, don't they understand?

In the interest of not getting myself in trouble by identifying the specific person I'm referring to, in case they happen to read it, I will speak in generalities (but this person could be identified as DM). First off, no one I know in my "real life" scrapbooks. No one. My friends give me blank, often disapproving looks when I mention it and I know they don't get it. Other people even closer, actively disapprove. Not DH. He thinks it's a good "hobby". Other people though (who are not to be identified, but could be labeled as DM and DF) actively disapprove. They think that "hobbies" are something you might do if you have a surplus of time and money. Otherwise, you should be focusing on other, more useful things (like cleaning the house) or things that make money. "I never did that" is what they say, and it seems to explain why they feel I'm misplacing my time. Why do I even tell them about it? I need to stop. To them, scrapbooking is "just a hobby" - in other words, a total waste of time and money and I'm being silly to spend either on it. At least online I see so many people who love it (and other forms of art) just as much as I do - I'm not alone and I'm not silly or insane :) Whew, thank goodness.