I think it was $1.50. But they also charged another $1.50 for handling (only applied on first item). With tax it come out to just under $25.00. I've ordered from them a few times without any problems.
Like all 3D Blu-ray releases from the 50s, I am going to own this. But I prefer to wait until the price comes down a few bucks (have bought so much lately), unless a site not named Amazon is selling it for $30 or less.