The WRX is not a drag car no matter how you look at it. Even if a 2009+ WRX ran a high 12 @ 104, it is still slow compared to many modern cars. The US is seeing a resurgence of the muscle car era (albeit with better emissions and fuel consumption). The new 2011 Mustang GT with proper tires will be able to pull a mid 12 seconds at 112 MPH... and it's similarly priced.
Buy a N/A or supercharged V8 if you want to drag race.