Every so often, I get a catalog from The Teaching Company, offering me their Great Courses DVDs. I've only been interested in one -- "History of Ancient Egypt," taught by none other than my totally crushworthy favorite Egyptologist, Dr. Bob Brier. Normally, the DVD set is $519.95, but they send out the catalogs when the sales bring the price down to $129.95.
I just ordered it used from Amazon for $24.99.
I've never seen it going for that low. The last time it even came close was $40-something. This is unheard of.