Wow thats awesome, I actually picked the wrong photo. LOL But heres one flip side (playing devils advocate) to the price comparison you did...what if people don't own reinkers? Now they have the investment of those on top of the styrofoam balls which makes the pots more than the price of flowersoft. Flowersoft in the States is cheaper than you mentioned plus I get mine at a discount.
Not arguing with your post (definitely a brilliant post) just wanted to point out that not everyone owns reinkers in a multitude of colors. I only own three reinkers (black, brown and a watermelon color) and two brown copic reinkers.