Money is maybe a sufficient discriminator, but it is not a good one. Money is very unequally distributed around the world and this basically presumes that the only legitimate use of such a domain could be in an enterprise in a first world country. Or someone rich enough to not be price sensitive at all.
Fun fact, I reserved tty0.dev as a "vanity domain" during the presale, but someone decided to pay $300 more for the joke than me. And that domain still doesn't do anything "useful".