The "Ville" products are not games. They don't reward skill, you can't win them, and they don't offer any fulfilling multiplayer experience. Most real games fit one or more of these attributes.
Zynga products have more in common with cigarettes than something like Starcraft. Both of the former offer a not-terribly-fun experience that has been thoroughly optimized to provide maximum compulsion and habit. The other is made for entertainment and draws its value from people enjoying this entertainment.
I don't think well-crafted, interesting games will crash.
[1] http://www.theverge.com/gaming/2012/7/2/3125866/the-state-of...
http://www.examiner.com/article/star-wars-the-old-republic-s...
Seems like the gaming industry is all over the place right now.
This opens up more space for small studios and indie games, which I think is a good thing.
The economy is booming from mining right now and the dollar is very strong, meaning the cost of living in USD dollars has nearly tripled since its low point in the mid '00s.