My dad is big into the whole Audible thing as well.
I've recently signed up for the one credit a month. I don't listen all that much since I don't really have a commute. The nice thing I like is that I don't really need to download it to the pc, as the app can either download it directly to your device, or if you have a phone, can stream it as well...
Very good selection, and the sales aren't bad. Gotta watch out for impulse buys though. For some reason I bought the entire collection of "Nero Wolfe" radio plays... (But they are interesting to listen to)
Programmer - An organism that turns coffee into software.
If all your friends are exactly like you, What an un-interesting life it must be.
"A door is what a dog is perpetually on the wrong side of" Ogden Nash