Because I didn't want to wait. Because from the pics I have seen, I prefer the front end of the C5 better. I dunno, I lot my laugh at me for it, but I really like the flip up headlights of the C5, cause when they're not on the front of the car looks a lot sleeker. I also got a screaming deal on the C5, I got every option excpet for the 6 speed for 50k, plus a 2k rebate, plus.........free tires for life.
If I fall in love with the C6 when they come out I may get one, who knows. I'm happy with what I have.