Hey, GordonJ. Thank you for this post, I think that it's important to know this kind of models because they will help you to sell as more stuff as possible which is very great. I found out about these business models 2 years ago, when I had a small business, I didn't know what to do, in order to sell my products so I decided to find something on Google, I've been searching for 2 hours and I found an article about it, you can check it out, maybe you can edit your post and paste it because there is some additional info about selling:
https://tracktime24.com/Blog/suggestive-selling-tips . I've been using tips from it for some time and I can say that it helped me to start developing my business, maybe somebody will be able to succeed too, who knows.