I asked them about what appeared to me as the inherent silliness of selling an "exclusive" tokenized image, which could be easily copied with a right-click for free. Their response was that this is essentially no different from print making. When you buy a print, you are buying something you have the means to produce yourself. You aren't paying for the quality of the print making materials--you could order identical prints of the image from a print shop, or if you're less concerned with quality, simply print at home.
But when you buy a print from the artist, you're paying for that signature that says "#3 of 100." There's nothing stopping the artist from printing more, and there's nothing stopping random people from duplicating the print, but we're comfortable with the idea that a signature confers a "uniqueness" to the print that makes it valuable.
I don't know if that is an argument against print making or a case for NFTs, but I found the point interesting.
Context: I own no NFTs nor do I plan to.