Well many 3D hobbiests wouldn't know the difference between a normal and a whole in the ground and paying good money for content expect it to work within the parameters that it was advertised to have worked with.  I've been doing 3D graphics for years and I don't want to have to do a lot of tweaking.  If I buy something I want to load it in my scene and have it be ok and be able to concentrate more on composition and lighting.  IF something does not work properly  the vendor and/or website should do an update for the product until it is up to specs.  Both Smith Micro and Daz advertise that using their software is intuitive and fun and something anyone can do, even a person with no 3D program experience.  I don't think that it's too much to ask for a product to work as advertised, especially since it seems that after years of declining prices (at least at Daz) that prices for content are starting to go up again. 

As to what wimvbd said:

"Daz's quality for Poser content is getting lowe which is not the case on the other sites"

Do you feel it's just the Poser specific content or would you include content created for Daz Studio as well?  I will give you that other webstie have higher quality merchandice than they used to have, and that's a good thing because it's good to have choices.