I agree with everyone saying that cheap, low quality, or undervalued models are bad for the market, vendors and customers.
How about this. It would take time and effort to implement, but I believe it would work.
A rating system. Sounds familiar? No not the same one.
Here you would rate for separate aspects of the model:
- presentation
- topology
- textures
- materials
- etc.
- PRICE (suggest the price)
all the data would be seen for the Vendor, but only the average of all would be seen for the customer.
And most importantly there would be an option on the site to sort by rating.
Also, when the vendor would update the low rated part of his model, this would reset, so that would encourage everyone to fix the issues and gradually quality of the whole market would go up.
Sure there have to be protectors against misuse of the system (under, over - rating). That can be solved by introducing a multiplier to every person that has the right to vote (not everyone should get it to begin with) so if your vote is way off the average, your multiplier goes down . Customers who bought, downloaded the model would have the highest multiplier.
If the price set is close to crowd suggested price, it is shown - Price Matches The Quality .
If all/most of the prices have this badge, the vendor gets something like Fair Trader Status.
There might be more issues to be solved, but nothing is impossible.
What that would do is educate the sellers who are new to the market (how to present, price your models etc.); increase the quality over all; and average out the prices.