Well, I tried the old "don't ask permission now, ask for forgiveness later" on the wife by buying the HD600s. It didn't work.
So now I'm selling them to get out of the doghouse.
Purchased only a little while ago, I've only worn them a few times, and they're still in like-new shape. I still have all of the original packaging, etc. The price is $195 and I'll pay for ground shipping. If you want them faster, you can pay the difference to upgrade the shipping.
UPDATE: Sorry, I forgot to mention, I take PayPal, Check (wait to clear) or Money Order.
ANOTHER UPDATE: They have been sold! Thanks for your interest.