Yes, you are right, but you have to remember something, you might see a link to a site, but the minute you click on it, your computer might become infected or your information may be compromised or any other number of things. Not sure if anyone remembers the Microsoft problem they had quite a while back. People were getting emails from microsoft, very official and they wanted all sorts of information and it was not microsoft at all. Nvidia is a very trusted company, that is the only brand of graphics card I buy, but I will go to their site first, before I click on anything. What seems official and actually is official are two different things. Even the sims3 site could have third party sites that are not legit, so just be careful, they are probably fine, but I learned the hard way, not to trust any link without first finding where it actually came from. Sorry I strayed here, but thought it was important.
It's OK. I know that you can't trust even official sites and what seems to be official sites so easily, but this contest definitely seems to be from NVIDIA's official website and officially hosted and regulated by NVIDIA itself. So I myself didn't see much more danger with visiting it than visiting the official The Sims 3 website - the risk of getting malware, spyware, viruses etc is just as high (and the risk would be higher with downloading from the Sims 3 Exchange), but of course people can't know how official it is until they check out the website (which could be dangerous) or find out through more trusted sources. I was just trying to make people aware that it IS from an official corporation, and not from some suspicious unknown and unverified company out for your private information.
Call me naive, but I do trust my Firewall/Anti-virus program to tell me whether my private information is at risk since it's rather easy to detect such attempts from websites. I believe it's rather ingrained in nearly all computers and their anti-spyware to not allow websites access to personal information without permission (correct me if I'm wrong).
Sorry, not meaning to stray here either, I'll try to stay more on the topic of Free Stuff in the Sims 3 Store.
Anyhow, I'm glad for all the free stuff we get from the store, but I wish they'd be giving us more stuff. And not just paintings, lamps and clothes, sometimes I'd really like some new furniture to decorate my sims' homes with! But well, you can't get everything for free. But you certainly want to!