Do you have a specialty pan at home? It could be something as simple as a specialized bundt cake mold or a bit more unusual, such as an aebleskiver pan. These pans all have fairly limited uses, but if you use them often enough, it's worth the extra cabinet space to save time in the long run.
Some pans, however, might take the specialty concept a bit too far. The Jesus pan might be a good example, except you can still use it for many different kinds of food. This pepper griddle, on the other hand, is made from cast-iron and has eight pepper-shaped indentations that are "recessed to evenly blister the Jalapeno pepper halves." It can be used to make stuffed peppers, and little else.
Stuffed peppers are good, but do you really need a pan dedicated to making them? If so, they're only $15.95 each.