I got into it because I was just done owning plastic sewing machines because they break if you look at them cross-eyed. Then I found these antique and vintage ones could take a bullet and keep ticking, and even made sure to get a treadle so I wouldn't have to worry about a motor! It was actually only when I started looking into parts for it that I feel down the vintage machine rabbit hole.
Mrs. SewNSew is right, as long as you're reasonable and thrifty, it's a great, inexpensive hobby, and having those wonderful machines around makes being a productive sewer very easy!
As long as you enjoy it, it's not ruining good relationships, and you have the room, don't worry. You're doing history justice! And I'm not just saying that because we want to see pictures of those machines. Not at all...