Just discovered this yesterday. Not sure for how long or if anything else is also on sale, but the other Smallville seasons are full-price.

Thanks otmetrud for the heads up. Wish there wasn't so many new releases coming out that I do care about in the next few weeks otherwise I would jump at this.

Good to see, I got Season 3 at Amazon for that price last year, I was going to get Season 4 there next time they had it for $29.99 but then Target had S4 for $24.99 in January, so I got it there instead.