The direct competitor to SpaceX is the Space Launch System [0], with a cost of over two billion per launch. SpaceX charges below 100M$ [1] (and has cheaper options available [2]) and you can actually buy it right now (EDIT: although it's true that Ariane is in the same ballpark).
> If Starlink is actually sustainable and profitable has to be seen, it could as well just be a way to push SpaceX profitabiliy further down the road through a Starlink IPO. Now way to tell either way.
Whether a business can survive in the long term is never 100%. Still, you, as an average consumer, can order a satellite dish and get fast and mostly reliable internet for a reasonable-ish price right now. I'd say that checks as delivered.
[0] https://en.wikipedia.org/wiki/Space_Launch_System
