1. Uses desktop grade hardware (i.e. no ECC, single socket, limited networking, etc)
2. Is located in Germany (i.e. high latency for your US user base).
Don't get me wrong, the pricing Hetzner provides is unbelievable.
I just wish a US based hosting provider was available that used server grade component who was even 2x Hetzner price because it'd still be a steal.
(For those of you unaware of their pricing, you can get a Xeon E-3 with 32GB of ram for just 79 euros/mo.)