In terms of cash, $1200 a year is a lot to me personally, I'm a student, I have no income, and I'm trying to bootstrap a startup. $1200 could feed me for a year. Even when I had my PhD stipend, $1200 was a months stipend.
I originally chose to use Caddy over NGINX because it made https easy: just download, configure, run. If I have to remove the sponsor code and build it myself, it loses the advantage it had over NGINX because now I've got to spent time creating a build script and updating it whenever Caddy makes changes. With NGINX, sure, I'll have to configure it and letsencrypt, but I'll only ever have to do that once.
It's $100/month for 2 instances, you can only pay annually, so $1,200 is the minimum you can pay and it nets you two instances, not 24.
If it was $100 for a year and included 5 license to cover live and dev environments, I'd probably have just bitten the bullet and paid for it. I don't really care for the "basic email support" being offered, I just want to serve web traffic.
why not?