This is a little bit of a sales technique suggestion. I am retired now, but was making my living turning and selling "Kit Pens". I offered very high end, high quality pens, and charged accordingly (typical price range: $90~$330). Also, I was fortunate to have my vendor display located at a Marriott Resort on Kauai. Great venue. The resort had a significant portion of guests who were locked into Marriott timeshare arrangements, providing me with a grand opportunity for initial sales, and repeat business.
Whew! All that background info to say this: At the time, I did not have this video provided by the OP, but if I had, it would be queued up on my tablet to present as part of my sales pitch, since I had a nice selection of Cebloplast pens in my lineup. This is the type of thing that could be built into a sales presentation that helped justify the price points I was using. My suggestion here is to encourage you sellers of your pens to think along this line. My approach was to focus on quality sales rather than quantity. To say it another way: fewer sales, but at a premium price point. I also made sure to have a few nicely presented pens on display in the $500+ price range. This was intended to snag the occasional high priced sale, but mostly was there to provide a psychological nudge to the buyer, implanting the idea that: "This pen maker is really high-end, and even though I am not getting that $500 treasure, I think I can go for the affordable $300 one." The approach seemed to work.