I got my PS2 during the holiday of 2000, I played it on up until my last game, Grand Theft Auto: San Andreas in 2004. Circa 2002, I was purchased a new PC for college and stuck with almost exclusive PC gaming from 2002 until September 2008.
In September 2008, I was hyped about Fallout 3. My PC, the one I got circa 2002, could not run Fallout 3. The price of the PS3 at the time was still in the $400-600 range.
I ended up going with a used 360 off of Amazon for less than $200. It RROD in April 2009. I got it fixed for free by Microsoft in July 2009 after I finally put down the World of Warcraft.
Why did I go from PS2 to the 360 instead of the PS3? Price and experience with Microsoft Gaming's quality products via the Age of Empires series.