1. My current MBP 13" 2010 for everyday classes and to lug around campus.
2. A PRE-Unibody MBP 15" just for the nostalgia.
3. A new 2010 MBP 15" with the Core i5 and discrete graphics for gaming and power!
I have three. Since I have a large family of 7 there is always someone willing to take dad's old MacBook. I have a 2010 MBP 15 Hires AG, recently handed down my 2009 13" MBP to my oldest daughter, and her sister has my Blackbook.