I really wish people would stop comparing the value of a movie ticket to the value of a game. Movies are not games and vice versa. When you see a movie, you have certain expectations whereas with games, your expectations are different. If you pay $60 for a game and you finish it in 10 hours, you will be angry - and rightfully so. Games have an inherent quality called
replayability that is just not present in (most) movies. Since the beginning of time, games have had high scores, multiplayer, secrets and more, which are forms of replayability. If a game lacks these things, then the value of the game drops and thus that $60 was not well spent.
Anyway, about the article - Again, I think it's hard to compare and draw conclusions about free updates to a crappy Flash game versus a series of FPS maps. I still think $10 for a map pack is a rip-off though, but that's coming from a spoiled PC gamer who has gotten maps for free ever since Doom.
"If you like it, they will stop making it" - Herblock's Law