That is crazy. Why would they stop accepting bitcoin?
They probably just wanted to get the free publicity.
I just checked. It's still there.
When I went there it said the promotion had ended.
EDIT: It is still an option to use bitcoin to checkout, it does say that the promotion has ended when you go to newegg.com/bitcoin (the site must assume you are responding to a promotion when you go to newegg.com/[word]
I wish I had of found it! I was looking at checkout.