Fuck, another brilliant idea that was easy to make, but I didn't do.
It reminds me of the million dollar website where each pixel was sold as advertisement.
I also think that's one of those lucky/momentum deals, wasn't it each pixel was $1 or were they worth more? There are a million companies out there (to ask)?.
Ideas don’t have to be unique. You can create your own version
Since then a million other "million _____" websites popped up. I saw a site selling one million text lines for $1 apiece. Last I saw they sold one line, now the site is gone [edit: INCORRECT].
Found the site: https://www.themillionlines.com/