Sometimes it just happens. When people comment on what my husband thinks I always say, "He understands that though he COULD do woodworking with a single power saw, having the correct tool for the job makes things easier and turn out better. He encourages me to get what I need." And, he does. But, he has a heck of a woodworking shop, too.
I only had my 1985 Sears Kenmore and a throw away Singer serger for years. I wore those out. So, I bought a sewing/embroidery combo and a new serger thinking I was set for life. I was not. I wanted to sew while that embroidery machine ran. Someone at church gave me a small, mechanical machine. I hated that thing. It was okay for small projects but nothing big. My sister now has it.
So, I went looking for another machine with a large harp. I bought a Janome 6600 which I love but it is too heavy to take anywhere.
I had always wanted a treadle machine. My DIL gave me her grandmother's. Then I started looking on line at vintage machines. I like tinkering. I wanted a FW but didn't think I would find one. So, I bought a 301 which my husband was SUPPOSED to paint red for me. He wouldn't because it was so nice. He said, "Buy another and I will pain it." I use the 301 when I go to class, retreat or want to sew in the basement by the fire.
In the mean time I found a 1936 FW and a 99K. Both were good prices. Now, my husband has a "bug" about vintage machines. So, I bought another 301 for him to tinker with and paint. I do a lot of piecing on the FW.
When my grandmother died I inherited some money and bought a HQ16 quilting machine and frame.
I also found a heck of deal on a used portable Janome - $15. My DIL had started sewing. I got it for her to use.
When my DILs are in it is very handy to have multiple machines set up and running. At Christmas, my MIL's single machine quit and my SIL showed up at my house to sew all day. Since I was sewing I needed multiple machines going. Forgot, I have my MIL's Juki upholstery machine in the basement right now.