I do both. Why?
Because with a subscription you get 30 girls at .33 cents each.
Basically if you buy a girl for 2 tickets you get 60 tickets worth of girls in a month. The bad side is you get cards you have no desire to own (and based on low ratings and comments no one else liked it either). The good side is if you get at least 10 girls you like it is the same as buying a booster pack plus you have 20 other girls.
Supplement a subscription by buying booster packs andd tickets.
Subscriptions are like playing lotto. Sometimes you get lucky, sometimes you break even and sometimes it sucks.