Though he never really expected it to earn its price back. As a large-fraction-of-a-trillion-aire, he may well have found that having trolls, clowns, and morons to enjoy his adolescent antics is worth $44B in pure enjoyment. He was buying a chance to put a significant thumb on the finger of world culture.
Musk has so much money that he doesn't really care if there's a net positive return to his purchases. He spends money to enjoy it. Which I actually find bizarrely refreshing, compared to the ones who want to use it for the purpose of acquiring more money, plus the occasional conspicuous consumption that seems more like a performance than actual enjoyment (e.g. megayachts).
Too bad he's such an asshole, though.