ok, let’s play out your scenario: so now you need to buy two houses in two different towns so you get two different ISPs and running your server on two differen

ok, let’s play out your scenario: so now you need to buy two houses in two different towns so you get two different ISPs and running your server on two different power substations (since you’re no longer building that resilience in at the server room level). That is still going to cost you way way way more than deploying something on AWS in a multi a-z or multi region. And you still haven’t addressed the issue of secure out-of-band management. The only benefit with your solution is that the second home is at least an capital asset; but even still, it’s more than any small or medium sized company would be willing to stump up (I say this from experience since I’ve worked on disaster recovery solutions for SMBs in the pre-cloud computing era)