Why so many Gold CDs for sale?

I can't help but notice that a large number of gold cds are showing up for sale. Is it safe to assume that either new SACD or DVD-A relaases of the same music is superior (or at least cheaper and equal in sound quality) to gold pressings?
I notice some gold pressings are being released in the SACD format so perhaps this represents the best of both worlds.
Happens before Holidays every year?
It mite be the price they fetch. I only have a couple of Nat King Cole's Golds and they want $250 on CDNOW used.
I'm thinging about selling!
Why so many gold CDs for sale? Because there are so many silly audiophiles and others who will pay more for them.