Ah, makes sense. I would still tell this story in terms of a first-mover advantage, as well as one of innovation. The point is, in a market economy, it is nearly impossible to maintain a monopoly (or oligarchy) over time. Your margins will get squeezed by new competition enticed by your margins. It seems like you got lucky in discouraging your competition, but I don't think that's a reliable tactic. A determined competitor could severely damage you and open up the market by forcing you to overbid.