Damn, wish those dedicated servers were available in Hetzner's US data center. As far as I'm aware, the closest thing to a competitor in the US is OVH, and the server you get for that price is about a quarter of the capacity. That's plenty for my little company, but still...

Same here -- I'm eagerly awaiting them having a dedicated server offering

In the meantime have you looked at leaseweb?

https://www.leaseweb.com/dedicated-servers#US

I'm planning on running nimbus web services[0] there and there are a few other smaller providers I have earmarked depending on how brave you are:

https://www.defendhosting.com/usa-unmanaged-servers/

https://cc.delimiter.com/cart/dedicated-servers/

https://greenserver.io

[0]: https://nimbusws.com

In our case, we're running on top of a PaaS (think Heroku). Vertical vs Horizontal scaling is essentially the same complexity for the scale we're currently at.