baycouples

I am struggling on trying to figure out which is the best way to sqeeze out more money out of a same customer:

A. Month to month recurring
B. Multi-month one time fee discounted

Pros for A:
- No discount
- More loyalty, so you don't have to fight for this customer's business again once their membership expires
- No liability to customers ( meaning you don't have long term service commitments to customers who paid long in advance )

Pros for B:
- Makes a customer commit to a longer term
- Money upfront
- People who would never sign-up for recurring memberships will sign up for this option.

Any thoughts, webmasters?