Well, I have added two to my collection in the past couple of weeks too.
The first is an early 70s Singer that we found at the trash service area. She cleaned up really nice and purrs like a dream. Doesn't have a case or cabinet but I am looking.
The second is a 60's Singer in a cabinet. I found her are the Habitat for Humanity ReStore. She was originally marked $75 - never even saw her then - and was reduced to $15 the morning I bought her. Haven't had a chance to work on her yet, but she runs and stitches well without any work. So my count is now up to 7 machines - but don't tell my husband.