Can anyone give me an idea about how much refurb stock Apple usually has after they update a product? I'm thinking of upgrading my old PowerBook soon and was set on getting a current gen MacBook, mostly because of the price, but now I'm reading that the new generation could be the same price or even cheaper, so it's giving me pause. I really like the current gen's look and feel (both the black and the white) but I'm also very curious about what the updated model will be like. I think if I knew I could still get the current/old one after the new ones were released, it would ease my mind and make it easier to wait and see. Any advice is much appreciated.