That's true, different times, different stories, but that doesn't mean the old stories are no longer good stories to be told, anyway, eventually at some point in the future when block rewards drop next to nothing, BTC becomes widely used, many home miners will mine BTCfor the sake of protecting their money, and possibly making a tiny little profit, there will be no room for all these large players then, just a small 10-20th USB sticks or smart light bulbs that maintain the network.