Is it just the $499 price? I get instant email alerts when Mini refurbs are available in the Apple Store. The $499 model doesn't appear often and they usually sell out within 10 minutes. The $589 2009 model (C2D 2.53GHz) seems to last longer, but is not a common sight. The really rare one seems to be the C2D 2GHz at $429. There were a few available a couple of days ago but they sold out almost instantly. The 2010 at $599 appears often and stays available for hours. I'm new to Minis so I don't know why one is more popular than another. I'm tempted to get a 2009 but I don't want to tackle a RAM upgrade and I keep hoping there will be a SB refresh this year. Any particular advice on the 2009's? My needs are minimal and I'm looking for a relatively inexpensive way to play around with a new (to me) OS. Would Lion run on the base 2009's?