Edited sentence: According to research CorningWare had one major drawback: the dishes are so durable that they will last for 1000 years (after all the same technology was/is used for the heat tiles on the Space Shuttles) and it's not every dish that can go directly from the freezer to the oven and vice/versa.However, that doesn't leave a lot of room for repeat customers.The original CW dishes are now collectors' items, because people who have them don't want to give them up