I assume they want to attract as many customers has possible while they have that monopoly - eventually they're going to need to compete with Amazon (Leo) and China (Qianfan, although I assume it'll be banned in the US). The cost of the phased-array terminals probably means there will be some stickiness.

Also as has been noted, in some markets they do compete on price: https://restofworld.org/2025/starlink-cheaper-internet-afric...