So far the whole operation has cost around $30k (small business). We stand to save $1-1.5k per month at the moment, less the cost of symmetrical fiber about $500/mo.
Next year it will pay off but this year we definitely won’t break even on the servers.
How has this has changed our culture? Well, what I have enjoyed about the whole process is now we have a bunch of spare capacity, so we can spin up demo servers for SMB clients for even a few months and it “costs us nothing”. Then we can arrange payment later when they fully appreciate the service. We don’t take any risks anymore with bills that need to be settled to cloud providers. This has changed how “generous” we are in the outset with our clients. It feels really healthy to be able to do this.