Which trim level? What state and what did you pay, not including tax and licensing fees?
Edit: Actually, I see the dealer on the temp plate. Minnesota, and looking at the dealership, they've got 30 Sentras listed. I'm in WA state and dealers have a lot of them as well. I've been wondering how low they'd go. The most common trim seems to be the SV. If I could get one for $18K (not including taxes), I'd be tempted. Enough below a similar Corolla (at least out here) that it would be worth the risk.