Ed30s are getting more and more niche in terms of their market, as they get older.
There are still people out there willing to pay a premium for them, but as time goes on more and more people are of the "I'm not paying that money for a 9 year old car" type.
As for traction, once you're up past 320lb/ft or so, these cars really aren't great in the winter. An S3 sees to that, but I'd agree with the comments about them being a bit bland. They don't seem to have any presence on the road.
A mk6 R though... That's the one I'd have, if money would stretch.