I just tend to disagree with this sentence too. Basically there a lot of game developers even in hardcore genres who efficiently maintain content-driven games:

I just tend to disagree with this sentence too. Basically there a lot of game developers even in hardcore genres who efficiently maintain content-driven games: almost all simulators, economic strategies, Paradox-interactive strategies. There is number of small companies with only 20-30 employees who maintain their projects over decades basically releasing more of the same every couple of years.