Along with this, vertical scaling is severely underrated. You can do a lot and possibly everything ever for your company with vertical scaling. It would apply to 99% of the companies or even more.
Edit:
Since people are confused, here is how StackOverflow handles of all of its web operations. If SO can run with this, so can your 0.33 req/minute app which is mostly doomed for failure. I am only half joking.
Everytime you go to SO, it hits one of these 9 web servers and all data on SO sits on those 2 massive SQL servers. That's pretty amazing.
I want to be clear though, Horizontal scaling has a place in companies that has a team of corporate lawyers. Big. And in many many other scenarios for ETL and backend microservices.
Edit: Since people are confused, here is how StackOverflow handles of all of its web operations. If SO can run with this, so can your 0.33 req/minute app which is mostly doomed for failure. I am only half joking.
StackOverflow architecture, current load (it will surprise you): https://stackexchange.com/performance
Everytime you go to SO, it hits one of these 9 web servers and all data on SO sits on those 2 massive SQL servers. That's pretty amazing.
I want to be clear though, Horizontal scaling has a place in companies that has a team of corporate lawyers. Big. And in many many other scenarios for ETL and backend microservices.