If you don't mind your BluRay going on a trans-Atlantic Voyage. Amazon.co.UK has Band of Brothers for

17.85 EUR = 24.90 CAD or 24.40 US
plus only $4.30 shipping to get it to me in PEI, Canada

= 29.20 Cad.

I have yet to see cheaper domestically for the BR version.

With great power comes Awesome irresponsibility.