Servers costs from $50 to $100.
I don't understand top 60 witnesses complaining about earnings. I understand that they don't make much money after server payment, but some of us are at ~150-200 STEEM loss per month. And I'm happy that I generate 2-3 blocks per day. Some witnesses get even much less blocks (few blocks per week). This is almost 100% loss.
No they do not.
Do you have cheaper witness server?
I found server for ~40€ + tax at Hetzner and this was cheapest I found.