The week before Armadillocon, Half Price Books had their usual coupon sale, which starts out with a coupon for 40% off one item Monday-Tuesday, 30% Wednesday Thursday, etc., ending with a 50% off coupon on Sunday.
While shopping there Tuesday, I noticed that someone had sold them what appeared to be almost all of the Christopher Tolkien-edited The History of Middle Earth volumes. I asked management if they could apply my 40% coupon to all books in the series, and after looking at them they agreed. I ended up taking Volume IV-XII, because the earlier volumes either had some wear or were later printings. In fact, at the register they ended up taking 50% off each volume, each of which were $14.99, so I think I bought all of them at $7.49 each.
The UK editions precede, but the American editions aren’t particularly easy to find either. All of these are either Fine/Fine or Fine/Fine-, with some minor dust jacket wrinkles.