With an audible subscription, you get 1 audiobook a month for $30. This is slightly cheaper (on average) than buying an audiobook every month, and you get to keep the audiobooks you get from the subscription.

I love audiobooks, but the main reasons I haven't got an audible subscription:

* I'd much rather share it with someone, but I haven't found anyone else who likes audiobooks as much as I do
* It's owned by amazon, and I don't really want to give them any more money.