Robert A. Heinleinâ(TM)s The Menace From Earth had parks where people would strap on wings and glide inside a large cavern.

His novel The Moon is a Harsh Mistress was about a rebellion. The moon had been set up as a prison colony similar to what Britain did with Australia and the rebellion was due to the continued oppression of the descendants of the original prisoners.

Salary means nothing unless you can compare it to the cost of living in each city. I would suggest a high wage in Silicon Valley is actually lower than many other areas due the the high cost of rent and real estate.

Since finding Tetris in the university arcade in 1988, there have been no other substitutes (except maybe BlockOut and now cxhextris).