Hmm, I forgot to add two points:
Is it worth the price? Yes, for me, it is. Although I had to think about it.
Why is it worth the price? And this is the point: Not only because of a good game design that offers a lot of fun, but mainly because I supported with my money a cool low budget
company with great ideas about games and excellent ideas how to make them work (have a look at any other shareware fantasy strategy stuff to know that this is apparently not an easy feat).
I am still left with the (subjective) impression that Dom II is not a shareware game, not for this price. And as a non-shareware game, the critics are more unforgiving for polish and shine, too.