Ambroos, on 07 October 2012 - 22:11, said:
Just you know, your battery won't be worth a dime after about a year. Not using a battery and keeping it at 100% at all times is extremely bad. Other than that there doesn't seem to be a problem with what you intend to do!
(I don't now if it's possible on a Mac, but on my Sony Vaio I can choose to limit the charge to 50% or 80%. Doing that almost completely eradicates any form of capacity loss. I keep mine at 80% since I need it every day at school, but 50% is better if you never really discharge it.)
This is not entirely true any more. It's a good idea to occasionally use the battery, but you could get away with only doing it once a month or so. Apple has a whole page on battery life here
My old Macbook was primarily a desktop, and it didn't see any unusual battery wear for it.