That guy is living off that money, and Sublime is one of the best text editors out there. Consider it like a SaaS, but something doesn't break or stop when your license expires.

If you think the price doesn't reflect the value the software brings, then it's your choice, and that's fair. But as for the things it brings to the table, I don't think it's that expensive.

I pay similar for BBEdit, and it saves my bacon regularly. Plus it's dependable.