That article is utter bollocks. The author keeps going around in circles and completely ignores a key market fundamental: why should I buy this game when I can get newer/bigger/better ones (assuming that you believe "newer" or "bigger" is "better", which i don't, but I understand that people do)?
He compares a game of basketball and a game of Civilization to a minute's skydive on the basis of its time, yet he fails to address the limitations of the gaming experience. Games rarely exceed €70 because the experience that they can offer is limited in comparison to say, skydiving.
The market has decided that a gaming experience is not worth more than €70, and competition is regulated on the basis of that price ceiling. The age, quality, length and reputation of the game are all factors that can conspire to bring that price down because old age, shortness, poor quality and unknown brands are all issues that gamers perceive to be value-diminishing factors.