It will get cheaper with more volume and lower cost. $99/month to be the first with low to none contention ratio and getting gigabit speeds is pretty good. Especially if one connection can be shared out using ground based repeaters.
This isn't designed to compete with BT just yet.
Although I can see a future where this is cheaper than putting down cables, or having 5G towers every 100 meters. You'd be surprised how far a signal has to travel these days just to check an email - further that low earth orbit @340 miles thats for sure.
In fact, in future it might make financial sense to put server farms in orbit - cheap electricity, cheap cooling, low latency to something like starlink, no size constraints. Obslete hardware can just be deporbited. The only obsticle is cost to orbit and the development of a large solar array for power. Which would be solved with something like starship.
So I recon in ~ 10 years, something like starlink (TBH there is no competition) would be the only way to develop and communicate with a server farm in orbit. I would not be at all surprised that Starlink would be the next cloud computing service provider themselves. Ping to our datacenter in Manchester is average 21ms. Via the VPN - that is already greather than 340 miles there and back, just to send a mouse click and get a reply from the server I'm administering.