True, but this is at least partly balanced by the fact that decentralized systems cost considerably less to operate. With my own example, I've already calculate

True, but this is at least partly balanced by the fact that decentralized systems cost considerably less to operate. With my own example, I've already calculated that I could handle over a million concurrent users on a few hundred a month in hosting costs. If I had to relay all that bandwidth it might be hundreds of thousands in costs. A decentralized Facebook would have less revenue, but also negligible hosting costs.