To be honest I dont mind selling in discount as its like question: do you want one big cake or two small?
I have selected that option and I have 2x more sales. Compared to less sales but bigger ones. Of course it depend on what you sell but still... one big cake or two small... at the end you get the same thing.
People need to remember that its not local sales, its all around the world, so after someone buy your model is not like no one else will buy it, there are millions of potential clients out there, all you need to do is invite them somehow to your "shop" of models, as if they bought one, they will probably buy something else, now or later.