Many plots of land in the game went for thousands of XMR in the past, and there are many players who invested 1k, 10k, or even more XMR into the game. Just ask Karl Hungus who put over 30k XMR into the game: over 10 million USD at current prices!
Karl Hungus owns ~10% of M, so maybe he still makes his money back when CK moons one day
