That is correct. Kuching, Malaysia, the land of oversupplied real estate. $250 usd = 1600sqft. In Hong Kong (where I live), the same space cost 15-20x more lol.
Very nice - best I've seen anywhere in the US in the last decade was $1000 for a 3000 square foot "mostly warehouse with a small office space" setup I had in the Indianapolis area for a while, unless the place was HUGE (10,000+ feet).
$500 for 1000 feet with water/sewer/garbage included where I'm at now though is good for this area, expecially with the "cooling vents/louvers" built into the building front-and-back of the space, the "gable-type exhaust fan" that was already installed in the space (but in a bad spot, it'll work better as another intake), and I'm on the end of the building with 2 A/C units mounted in the "side" wall (one I converted to additional "vent" area with prior landlord approval but in a way I can easily put it back the way it was when I move out).
I suspect part of the reason it's as low as it is would be the ACTIVE railroad track (single-track BNSF main-line) the property backs up onto - but I grew up almost as close to a dual-track Penn Central line so the train noise is no big deal to me.
A standard 192.168.x.x privatenet offers ballpark 64,000 usable addresses - I don't think even BITMAIN needs much more than that, though I'd guess they probably use a 10.x.x.x privatenet "just in case".
For example, I run my A2 miners on the 192.168.2.x subnet, most of the rest of my machines on the 192.168.100.x subnet, I USED to run a bunch of machines on 192.168.10.x via 10Base2 coax, I USED to run my S5 farm (and the SP20) on the 192.168.5.x subnet, and I have a DHCP address space set up for "short term usage on new machines I've not had the chance to fully configure yet" on 192.168.254.x
My mining farm area though is starting to subdivide - each 6-rig "rack/shelf" unit will have it's own 192.168.100.xx1 through .xx6 address set, moving probably to 192.168.0.xx0 range if I get big enough eventually - makes it easy when I look at remote monitoring to say "ok, that IP is down, it is located THERE".
I already had that implimented on the previous shelving units, each "row" with it's own .xx# and the # being the rig IN the row from top to bottom.
I'm SURE this is not a new idea, though I've not seen it in actual usage anywhere that I can remember.
It's NOT a good idea to push 300+ watts through a "dual PCI-E" type cable in a lot of cases - check the gauge of the wiring first, some of them are only intended to handle the 225 "8-pin + 6-pin" that are attached to them with VERY LITTLE left over if at all.
EVGA and Seasonic cables should be OK - EVGA uses fairly heavy duty wiring on it's VGA cables for the G2/P2/T2 series (and I think they carried the cables over to the G3 series) and Seasonic tends to "double up" on the wires on their dual-connector cables.