Thank you for your input!

It all seems too good to be true, so I thought I'd ask the community how they view this practice.

To me, the Renderosity EULA is worded, in several places, such that Merchant Resources would violate the EULA.

I guess this falls into the category of buyer beware. Kinda of like buying 3d model replicas of brand name cars, furniture, etc. and believing the vendor when he/she states that he/she has the right to grant you commercial use of the model in your work. As a former professional photographer, I can tell you that you do not want to produce commercial work using someone else's brand name product without prior written consent.

Alas, I have drifted off topic! Again thanks for any input!