I just checked WTS Bookstore's website (
http://search.wtsbooks.com/?FullText=ebook&x=0&y=0) and found out that
the sale is still going on! I apologize for the bad information. I did say "
was to have ended," though, because I had not actually checked the website to make sure.
Being mathematically challenged as I am, I may have missed something, but I don't see how my math could be incorrect. I got an email from them two days ago at about 9:45 a.m. and it said that the sale was good for 48 hours. I wonder now if they sent me an email saying that the sale had been extended--I haven't checked my email in the last 24 hours or so.
I'd love to see what other ebooks that they have on sale to see what else that I would want, but I can't now because I want to abide by their desire to limit sales to two books. So, there's no point in looking. However, since the announcement that you saw didn't mention the limit, you might not feel that way.