I got the following email from Razordog today:
"Order ANY DEMO model today, and we will ship a BRAND NEW unit out tomorrow for the same price! It's our "NEW for DEMO price SALE this weekend!"
They also have the Sony MDR-1000X headphones (Black or Beige) for $298 (matched with Amazon and BB), but their open box price is $285. I believe there's no tax for most outside of MN. The lowest price I've seen these is for $275 + FS + TAX from jet.com.