Quote - But what will prevent buyers to get the hobbyist price and use the object commercially?

It's not being prevented, other than it's against the license terms. We are in peace with that risk, though. It started as an experiment, and we figured that people who we know are professional artist, or who we could figure out are professional artists, have all purchased choosing the correct price. And why would anyone professional choose to cheat? There is no reason for it. It's not even tempting, considering the product prices. We know it will happen every now and then regardless, but the benefits of offering a private use pricing too and thus reaching a much broader audience actually outweighs that risk.
As I said, so far it has been successful and has been welcomed as a fair model. Trust is something not very common in business, but we're granting it regardless.

I respect that the "choice" can be irritating at first, especially when you're used to terms such as the ones from C3D, from what I've heard and read.
But aside from the fact that the models that Walli is creating and selling through NWDA are a quality differentiator for us, the "choice" model is another differentiator.
We're not C3D and we're not attempting to beat Turbosquid. We're just a small high quality shop, where you may want to stop by when you're looking for good model packs.

kind regards,
Frank