Best Buy has Buy 2 Superbit DVD's Get 1 Free

Apparently this is an unadvertised promotion. Just picked up Spiderman 1 & 2 on Superbit and got Lawrence of Arabia Superbit free even though it was the most expensive of the 3 (Spidey 1 was $14.99 & 2 was $17.99). It seems they were already out of a lot of the Superbit titles I was looking for (Das Boot & Crouching Tiger were 2 of them) so this must be spreading via word of mouth. Just make sure if you get either of the Spider Man movies they ring those in 1st. If this has already been posted (I didn't see it), sorry.