For comparison, DSL is 1.5 Mbps. 4g is between 5Mbps and 12 Mbps (up to 50Mbps in burst mode), while 5g generally starts at 50Mbps. Cable internet is usually 25 Mbps, and up to 1 Gbps if you're willing to pay, and fiber is up to 10 Gbps if you're lucky enough to live in an area with fiber built out to your home. So in other words, Starlink is useful if you live too far away from a major residential center to have acc…
For $60/month you get 10 GB of data. For $150 you can go up to 40 GB. Overage is billed at $10 for each additional 1GB.
If I did my math right, at 12 Mbps you can chew through the largest monthly data allotment in under 8 hours.
In practical terms, for $150/month you can't even download one AAA game, and even if you buy all your games on disc you'll probably still go over the data cap just downloading mandatory updates.
Starlink hasn't said anything about data caps yet, but there's plenty of room to compete with terrestrial broadband providers on things other than download speed.