I’m not organized around selling, I bought mine for personal hobby use, but it has paid for itself more than twice doing #4 and 5 reproducing company logos on different materials for promotional efforts or awards.
My GF is a tool like any other in my workshop. I use it to make stuff that makes my life easier, plus the occasional pretty thing for friends or family.
I have an Etsy shop but have not paid the Etsy shop costs as yet. There has been more sold through friends. I get perhaps ~$50 a month through Kitely that I have not lifted a finger to for several years so even small sums over time eventually can be a considerable sum if you are not paying every month
Covid has made things exceptionally difficult, and the work fixing my back came to a screeching halt as well, so there has been even less ability for in-person selling.
I have a huge store of patterns but have not found a way to sell the files. I may just figure out how to get back in and sell them on Kitely.