Unless you can run the LLM locally, on a computer you own, you are now completely dependent on a remote centralized system to do your work. Whoever controls that system can arbitrarily raise the prices, subtly manipulate the outputs, store and do anything they want with the inputs, or even suddenly cease to operate. And since, according to this article, only the latest and greatest LLM is acceptable (and I've seen that exact same argument six months ago), running locally is not viable (I've seen, in a recent discussion, someone mention a home server with something like 384G of RAM just to run one LLM locally).
To those of us who like Free Software because of the freedom it gives us, this is a severe regression.
My company has set this up for one of our customers (I wasn't involved).
I'm pretty sure the connotation of "self-host" entails a strictly substantially smaller scope than starting your own ISP.
Finding someone willing to peer with you also defeats the purpose. You are still fundamentally dependent on established ISPs.