I'm just saying that for someone who might prefer the PWD, but can't afford to drop $3K, they don't necessarily have to settle. The PWD's retail price can also buy you a Theta or Levinson DAC, although I'm not sure they are worth the $3500 or so that they tend to sell for. Money is money, I don't really make a distinction between new and used.
A good point. Based purely on SQ, I would recommend a used PWD over the Ref7 if someone had a budget of less than $2k. But I think there are plenty of people who would be happy with the Ref7. To my ears, it's a nice sounding DAC. Not necessarily my favorite sound signature, but still a solid piece of electronics. At some point I'll get around to posting more impressions.