cost of basic/advanced node/month == $5 or $10.36
cost rapsberry == $300
cost on aws == $10 to $150 per month (https://aws.amazon.com/emr/pricing/)

How to host

allnodes: https://www.youtube.com/watch?v=3qu-DQo2m64
allnodes: https://www.youtube.com/watch?v=pHTxwQOlSxU

aws: https://medium.com/coinmonks/how-to-run-an-eth-2-0-node-on-aws-cloud-infrastructure-df55101e670b

https://ethereum.org/en/developers/docs/nodes-and-clients/run-a-node/
https://www.cleverti.com/blog/how-to-become-an-eth2-validator-step-by-step-practical-tutorial/
https://consensys.net/blog/blockchain-explained/my-journey-to-becoming-a-validator-on-ethereum-2-0/
https://levelup.gitconnected.com/deploying-an-ethereum-node-on-aws-cloud-512a861026e2

requirements: https://medium.com/simply-vc/setting-up-an-eth-2-0-validator-node-simply-staking-40b5f96a9e8d

Machine Requirements:

Operating system: 64-bit Linux (i.e. Ubuntu 20.04 LTS Server or Desktop)
Processor: Quad core CPU, Intel Core i7–4770 or AMD FX-8310 or better
Memory: 16GB RAM or more
Storage: 2TB SSD or more
ETH balance: Goerli ETH and some ETH for deposit transaction fees
Wallet: Metamask installed

Ports required:

Prysm uses port 13000 tcp and port 12000 udp
Port 30303 tcp/udp for eth1 node