I bought one a week ago in the Washington, D.C. area, and no dealer wanted more than list price. There is a $1000 "previous Lexus" owner discount running now. Washington Checkbook has a buyers service.
4 quoted MRSP
One quoted MRSP minus $1500
One quoted MRSP minus $2000
However, only a few dealers had a car in stock, all but one had the most expensive package with entertainment rear DVD, etc, which I did not need or want.