My wife got her 06 A4 back in March. 24k out the door w/ their 0.9%/0 down/5 year loan (that alone made it harder to pass up). Included the CPO warranty in addition to the factory one as well. Mid-level car - quattro, heated front/rear seats, auto, etc.
It's a comfortable cruiser. The motors on these are very ticky/vibrate a good amount at idle...we drove several, and they are all like that. Handles pretty well. Stability control isn't too intrusive. Decent pep bone stock. Oil filter setup is retarded.
A big part of why she got it is because the compareable year/condition/mileage BMW, Lexus, Infinity, and Benz's simply cost a LOT more, and weren't offering that crazy financing.