Metro areas aren’t the target. There is a large, underserved market that doesn’t have access to broadband internet, and for those customers this is a breakthrough.
Also while we aren't really used to this being the case with ISP's, lots of products get cheaper from when they are first offered. I think they're pricing a bit higher to start off with to just make sure they don't join the giant heap of bankrupt satellite internet companies.
It’s sad that it is even necessary in the US. Telcos were given massive amounts of money by the government with promises they would do this and then they simply didn’t and said cell phone service was good enough. I would posit that a populace educated on cell phone internet is largely responsible for the rise in intense anti-science stupidity and lack of fact checking we are experiencing. People on phones are too easy to manipulate and sway, the ad giants have mastered it.
Isn't it fantastic? The system of (mostly) free enterprise has created an affordable high speed service product that can be accessed anywhere on the planet.