Here in Germany the double DVD should cost round about 30 Euros. At some stores a little more and at some stores a little less. That's why I ordered my copy at amazon.com. The USA-issue costs incl. postage to Germany 17 Euros. Since BJ.com said that there aren't different issues for different countries I think it is a good alternative for the expensive German issue.

Your DVD-player just must be able to show region code 1 though.