For the international contest there are only quality prizes - countries are of course free to choose to give a quantity prize. WLM-nl has always done this though - but not for the most photos, but for the person who submitted photos of the most individual monuments. That seems to have worked well, but is something that is very country dependent. 

Lodewijk

2012/6/22 Nicu Buculei <nicubunu@gmail.com>
On 06/22/2012 10:09 AM, Lodewijk wrote:
This is not the first time this topic has come up - every time it is
about throwing up thresholds for photographers because we believe that
it increases quality. Actually, we learned that it doesn't. The lower
the thresholds, the less restrictions we put on people, the more
submissions we will get. Please note that we are not *just* caring about
that one single perfect shot, but we want people to upload multiple
pictures! If they want to upload 100 pictures of a church, who do they
hurt other than the jury members? I have been told that many slightly
different pictures could in the future even perhaps be used for 3D image
generation. But even for now I have more than once searched for a
slightly different angle of a photo because I wanted it for a specific
purpose. And I can tell you from experience that a jury is very good at
ignoring a set of 100 very similar photos. That is much easier than
choosing between two good quality photos.

As a member of the jury, I would like the work to be less, as a Wikipedian I would like the images to be of best quality.

But with my photographer hat on, I am strongly against setting a hard limit. If we limit the images to N, then I am sure there is somewhere a monument deserving N+1 pictures.

With this said, I do want to encourage quality over quantity, for example I think is a *bad idea* do advertise a prize for "most images submitted", as it can encourage low quality submissions..

--
nicu :: http://nicubunu.ro :: http://nicubunu.blogspot.com