Thousands upon thousands of WnW kits have been sold and will never get built, many people just like to collect them, then as Ron wrote, heaps of people are building the kits but will never show them on a forum, a lot of people do not like forums, then there are the people like us, we like not only to build the kits but to display them as well, we like the interaction with fellow modelers.
Wingnuts are a very secretive company and will not divulge any sales figures (just like other manufacturers) but I presume they are doing quite well considering that 1:32 scale WW1 model aircraft kits are a very very small niche market, as Ron wrote, they do it for the love of it not to make huge profits, lets hope that they continue for many years to come.
Des.