[Study]Why does the Japanese play a social game?

Japanese publishing company Enterbrain released a social game user action psychology report [PDF]. This had various interesting data. This investigation was carried out for 1,600 15-59-year-old social game users.

Q. Why do you play a social game?
(Answers of 5 high ranks)
1.I want to collect something(30.8%)
2.I want to be connected to somebody(20.3%)
3.I want to beat somebody(18.9%)
4.I want to be healed(15.6%)
5.I want to become free(12.9%)

Q.What are the first virtual goods for you to buy? 
(Answers of 3 high ranks of men)
1.Status up item(The item which can stimulate a game more profitably)(29.8%)
2.Time shortening item(25.2%)
3.Gacha(virtual capsule vending machine)(21.4%)

(Answers of 3 high ranks of men)
1.Avatar item(27.3%)
2.Time shortening item(25.9%)
3.Gacha(virtual capsule vending machine)(19.8%)