Skyrim was $24 on GMG on 17 Dec 2012. Pricing history. Also see SD thread. Also see two pages back in this thread.
I really dislike the spreading of bad information. Sorry if I sound pissy.
Just a couple sale items I noticed...
Elder Scrolls V: Skyrim - $23.99
Doom 3 BFG Edition - $10.49
Afterfall: Insanity - $5.99 (Capsule required)
These are displayed prices (i.e. without any voucher discounts added).