[HDBaseT]

The GPUs do not have to be "psychically located in your city" to have usable latency.

Of course, less latency is always better although running a traceroute between my IP and major city (Sydney) from 1,500 km equates to about 11ms latency with optimal routing. (Real life test, traceroute via an ISP Looking Glass).

[Gigachad]

1500km is still largely the same timezone though. To actually get consistent usage of the GPUs you'd want users on the other side of the planet using them while the current side is sleeping/etc.