Veneers can be expensive depending on the lab that will pour the veneers before sending it back to your dentist, and each lab varies by how much they charge. In many cases, the more you pay the higher quality porcelain veneers you will get. Expensive veneers will look more natural, varied densities on each veneer, rather than uniform throughout, etc. There are many types of porcelain materials, and depending on how many layers they pour to make each veneer, that also determine the lab cost.
I have also heard that you must take into consideration that when getting veneers, it is recommended that the dentist and lab also pour a model, especially for getting say 10 veneers for the maxillary arch, i am not sure what the technical term is here, but it's one specific to the porcelain veneers process, where the lab charges an extra $100 to $150 PER TOOTH just for this model, before they actually do the veneers, and this process will help your veneers fit better and less cutting and polishing is needed by the dentists after the veneers are put on.
So each lab charges about 100-300 PER TOOTH for the veneer, then the extra $100-$150 PER TOOTH for the model, then your dentist will charge 100-300 per tooth or MORE for prep, temporary, then insertion, adjustment, and overall resonsibilities, then some small overhead costs,
then the profit costs of cosmetic procedures in general are higher because people are willing to pay, etc, that is why you are looking at least $400 and higher per tooth for a porcelain veneer. This seems so expensive, and it is, especially for dentists that do this day in and day out, they should charge less for labor, etc. But that is not my point how much dentists should make per veneer.
I just wanted to point out that the cost per tooth is expensive but isn't as inflated as one might think. Be careful with places that charge less, because it means that they go to an average lab, give you unnatural colors, or veneers will chip and crack and break, etc. There are cheaper labs out there, but it is not known how long your veneers will last, etc.
And of course if you are a movie star, you get charged extra just because you sure can pay for a nice smile that will help you make millions more...
anyone with more info or corrections to this post, feel free...