well y dont u wait and buy a new one ? u will get $50 off, plus free ipod, which u can sell to reduce cost of ur macbook. In this way, u will get a brand new macbook for less than the price of refurbished.
This is exactly what im going to do.
Edit: Actually if you buy 2.4ghz macbook, u will get $100 off, as opposed to $50 on 2.0ghz one (plus free ipod obv.)