When the alternative is completely free and fully functional, yes.
If you're using proxmox in an environment where it provides value to your business, yes you should pay.
For home-gamers? Who the hell is even paying for a subscription? Why would you? As the OP points out, the only real benefit is the "production" package repos. You get the same or better support for free on forums and social media from the community of homelabbers who also aren't paying.
They can charge whatever they want for entry level support. It's still not for you, the free tier is.
If you're using proxmox in an environment where it provides value to your business, yes you should pay.
For home-gamers? Who the hell is even paying for a subscription? Why would you? As the OP points out, the only real benefit is the "production" package repos. You get the same or better support for free on forums and social media from the community of homelabbers who also aren't paying.
They can charge whatever they want for entry level support. It's still not for you, the free tier is.