well, first, because I can

...second, I had a 2001 Ford Explorer Sportrac with 24000 miles on it, out of warranty that literally was FALLING apart.

My best friend works at Mazda, so I got a hell of a deal for my truck, and a steal on the RX-8.

And, of course, I needed something to haul more than just 1 person around in... if it makes you feel any better, I own an '04 Yamaha R1 also :D

-- Aaron