I own all the mega miniatures zombies too. They are a very mixed bag. Some of the later sculpts were done by a different person and are poorly sculpted fillers. Some of the models, while not the best zombies abvailable, are actually not too bad and would look really good painted up. And at less than a buck a miniature, are better than the plastic zombies if you are looking to fill out your horde. Warning though... some of the later zombies, especially the children, are real dogs... even worse than some of the bad Black Orc zombies sculpts, or at least about the same.
Darkoath