Monthly unlimited.

I myself am poor, and I buy the weekly unlimited. Because I work 6-7 days a week and I'm scared if I buy the monthly I'll misplace it and Die.

Everyone I know at work just jumps the turnstile to save money, though.

Edit: if you live in NYC you are dumb if you don't have a monthly, shit there should be a yearly!

Sincerely, a New Yorker of over 30 years in the city.