Yesterday I was at City of Industry's Fry's looking for some RAM and CDRs.
I noticed the stack of K7S5A Pro boards they had were all "returns" with those white return stickers on top. When I bought the $99 XP2100+K7S5A Pro combo last week, the board was NOT a returned item. I hope they aren't trying to screw their costumers...
You might want to watch out for returned/refurb K7S5A Pro boards THIS time around or the next few times to come.
To spot a returned item, look for a white sticker that has a handwritten date and a signature on it. The sticker should say something about the item being once opened or returned, and that it has the same warranty as a "new" item.
It could be just City of Industry's store, though...