For Australia's national fibre rollout, from about 8 years ago, back-of-the-envelope costs for running fibre were something like AUD 20 / metre to run aerial li

For Australia's national fibre rollout, from about 8 years ago, back-of-the-envelope costs for running fibre were something like AUD 20 / metre to run aerial lines between existing poles, around AUD 100 / metre for new trenching, and perhaps AUD 30 / metre for installing fibre into existing underground duct with enough free capacity in an existing trench. That wont directly translate into costs in the US, I believe Australia's cost of labour is relatively high. I don't believe the costs would be dramatically different for installing different kinds of wired comms connections other than fibre, most of the cost would be labour & moving earth out of the way, etc. Some of those per-meter cost estimates may implicitly assume that you're constructing new fibre network at scale with a multi-billion dollar construction budget. So $7100 might be plausible for the up-front cost of running new line 800m or so aerially along existing poles just to connect your house. Another potential issue could be if the telco is able to cheaply get access to reuse existing poles. If the new line would pass a number of premises who could potentially also become new subscribers, then clearly the telco could amortise the construction cost across a number of new potential or actual subscribers rather than trying to lump you with the whole thing. But I don't have any tips about how to negotiate (unless you can convince a bunch of your neighbours to go in with you as potential new subscribers and collectively try to reach a bargain).