I went to check on the service, thinking about the 1.50€ a coffee might cost here :) but 6€ (+ taxes!) feels too steep for the value I'd get from it. Bitwarden is my frame of reference at 1€/month, and it is the most valuable tool I pay for, so it's difficult to justify 6 times that just for a social network.

I think this underlines the impression I had that Mastodon software is quite bad in terms of server resources consumption, feels like a very heavy service to host. Probably lots of performance improvements are still achievable, and hopefully hosting it becomes cheaper over time.