You have no idea how much this domain costs me (well, maybe you do, but suppose you don’t). A typical dotcom domain would have set you back like ten dollars a year or so. This one costs me a whopping $110 a year! I pay for a single domain for a year what any sane person would pay for for 10 years!
But why though?
How often can you say you own a two letter domain names these days? With dotcom TLD, you almost certainly can’t. I’m glad that door is still open for other TLDs.
But really, the most important thing to me is that it’s short and easy to remember.
Compare this URL: cs.cards/data-structures
vs this URL: computersciencecards.com/data-structures
I rest my case.