>> the only viable endgame is a promise of monopoly concentration and increased prices. But is that even viable?

No, the endgame is to IPO and unload that money furnace on the public. If you can get big enough certain funds will even be required to buy the shares. Part of the problem here is that general public have outsourced stock picking to mutual funds or ETFs via the 401K plan. Good plans won't buy this, but a simple ETF will if the criteria are met right?