On a page that lists products, we would like to give the user the option to sort the products by price.
The problem is some products do not have their price displayed and are "request a price." What should be done with this products when sorting by price.
I have seen other websites put them in order by price anyways which makes them easier to guess how much they are. Even if this is the best idea it would be particularly hard to do because most of the "request a price" products do not even have a price set because it fluctuates so often (based on the cost of materials like gold.)
Another thing we would like to do is allow the user to filter by price (like limit to only products below $500) but then again, what do we do with the non priced products.
I have considered different things like completely removing the non priced products when sorting/filtering by price, or putting them all in the back/front, etc.
Nothing seems ideal.