I can't imagine enduring a $600 monthly hit to keep servers operational for others to benefit from. And that's just one relay operator. Thats greater than the entire annual budget I put into my stuff.
Please, if you're getting value from these Nostr relays and clients, and you're in a position to do so, fund the developers and operators that make it possible.
As a community, we have our work cut out for us to improve operational efficiencies to reduce costs for network bandwidth, storage and compute. If we want to survive and grow we have to take care.