No matter how much a comparable worldly DVD costs, it comes down to the value. They pulled that sxxx on me with my music, suggesting that I donate generously given that a worldly record costs around 7 toilet papers (in those days). They pull that with the littera-trash, comparing it to fine books that cost more than 100 toilet papers in those days.
However, if the rubbish they put out isn't worth the plastic or paper it's printed or encoded on, I see no reason why I should donate what they suggest. When you buy a DVD, you don't buy the piece of plastic. You buy an intellectual property. You are buying someone's work in composing and producing what's on that disc. Some are worth more, some less. Same with music. If you are looking at a masterpiece like Fleetwood Mac's Rumours, Michael Jackson's Thriller, or the Saturday Night Fever soundtrack, many people think of those albums as being worth a very high price. To pay the same price for those fine albums as for a regular album is a steal. Someone was a master in creating intellectual property and did a lot of work in doing so, and hence it's worth a very high price.
On the other hand, if someone throws a crap doctrine as a storyline and uses something that is probably off the shelf software to produce the actual video, you are looking at pxxx poor value. Ditto the Kingdumb maladies--there is no way a set of those pieces of rubbish is worth a copy of Michael Jackson's Thriller. Even if you get 4 discs with Kingdumb maladies and only one disc with Jackson, again I am not paying for the plastic. I am paying for the artistic value that went into the production. The Washtowel doesn't give that value, so no matter if it was 500 discs, it wouldn't be worth the electricity it takes to play them. This is why it's a fallacy to compare disc for disc with worldly videos or music.