There's only so much gamers can handle - Klippy gives his opinion on how constantly pushing the same-old can ruin enjoyment of once-great franchises. View the full article
Good article. But as you said, the reason for so many sequels is that video games have become so expensive, especially the "AAA" games, that once a hit franchise is born, sequels are developed left and right to make as much of a profit as possible. This is also why DLC exists, as opposed to unlockable content. In fact, it feels like some developers sell incomplete games and make you buy DLC in order to get the full experience. Annual releases are not good. This is why Guitar Hero died. People got bored. If you release a sequel after 2-3 years, then people are happy.
In fairness this is why I never bothered finishing Black 2 and won't even bother buying X or Y. Pokemon is as bad as CoD for being the same boring, stale formula regurgitated with a new coat of paint everytime. Give me WAW and Pokemon Silver over Black 2 and B ops 2 anyday.