I think it's a love of sewing and getting a good fit. I'm learning to sew clothes because I hate the way everything fits at the store. My Mom used to sew all my clothes - I'm 39 now - 40 in November. We would go pick out a pattern and fabric together. I would describe how I wanted it to fit. Now she says my problem is I had a custom sewer the first half of my life and haven't gotten over it. (lol)
I was thinking of revamping my garden, but you know we found it would cost $1K to put it the way we wanted. Well... the husband asked me how much have you been spending at the farmers market every week. I said about $15 - $20. He said it was more cost effective to support people who liked to garden then for us to get out there.
So now I look at sewing as a hobby and if I like it and I like what I'm making, then I'm good. Really I just like playing with power tools.