Sadly, I own many of these movies on HD-DVD that I purchased at much higher prices. Even with the death of HD-DVD I am surprised they are selling them so cheap. They surely cost more than $6 to make and distribute, as well as make a profit off them. I realize they are trying to get rid of this stuff but are they really taking a hit on each one?
That place is in Canada. Those are probably Canadian Dollars in the prices (I don't know the current conversion to US Dollars). S&H from Canada might be expensive too (I don't know - just guessing). But the prices sure look like a great deal if those two potential gotcha's don't bite you in the end.
 OK, I just checked the exchange rate. It's pretty much a wash. $5.99 CAN = $6.05 USD [/edit]
 A bit of a gotcha on the shipping rates per their website. To the US, $5.95 for the first item, $2.50 for an extra item. Not clear if each additional DVD would be considered an "extra item" and thus cost you $2.50 per DVD. No insurance or tracking until you move up to their shipping rate of $18.95 for the first item. Ouch! [/edit]
I took the plung on this site, got my movies today (ordered them on the 26th) so it took a little bit of time, but not bad.
Everything arrived perfectly and yep, you can see where they tore old price tags off the platic, so they look to be a dumping site for the HD-DVD's that got pulled. I ordered a boatload of discs and my average price shipped was $7.18.