I was a little skeptical of the sample DVD but I can honestly say I found the sample DVD to be entertaining for what it was.
Some of the geeky-delights for me:
* Looking at the spells being cast and trying to guess what each was (I saw sanctuary, what I am guessing is divine favor or some clerical buff, magic missle, charm person, coule others I am probably forgetting) ...
* Seeing the characters interact - they had discernable personalities (albeit stereotypical)
* plot (as much as I was able to see of it) was decent
*couple other things I am too tired to list
It isn't a big screen movie. It felt like a computer game but on the DVD player. (actually, yeah, the graphics felt like a computer game, dialogue felt like a quasi-movie, plot was definately a d&d game plot).
Not sure what the 'replay" value will ultimately be. But, as said, for what the sample DVD was, I found it entertaining.
Edit: I should mention that I have only played the sample DVD twice now.