It is very common for companies to have dark fiber built between data centers. Once you hit a certain threshold, it is more economical than lit services for a given path.
Yep, the cost of installing the cable (digging trenches, pulling through conduit, and whatnot) usually dwarfs the cost of the cable itself. If you're taking the hit anyway, running multiple fibers/conductors is a wise investment.
This is true even on a small scale. When I was upgrading the phone wiring in my house a number of years ago I went ahead and ran ethernet and coax all over the place while I was at it. If you're already on your back in a crawl space, it isn't that much more hassle to drill a few extra holes. :-)
> This is true even on a small scale. When I was upgrading the phone wiring in my house a number of years ago I went ahead and ran ethernet and coax all over the place while I was at it. If you're already on your back in a crawl space, it isn't that much more hassle to drill a few extra holes.
I agree. Wired is always handy. Other people - people buying your house - may disagree. Those people might prefer wifi, even if wifi is unsuitable for the building, even if there are very many neighbours with over-powered wifi on nearby channels.