I had 12 and thought that was a lot. I will be moving at some point and thought....each one of these machines will be a trip to the moving truck (not to mention the rest of the household), so sold 5 of them pretty quickly but have been having a hard time deciding which of the remaining 7 I can part with...a 15-91 has been a struggle. I took it out and took pictures of it to put online for sale and while writing it up, looked at the gorgeous stitches in the picture and haven't been able to post lol!! My devil's advocate says this one especially is pretty common and I should be able to come across another when I get to where I'm going, so I should just do it....