I will admit that I have resorted to eBay a couple times, but only when it was a really good deal... However, that always comes with casualties due to lack of common sense when packing something made of "glass".
But here it is... 1 year in the making... My N-series Rangetopper Collection. All of mine have the exposed aluminum bottom except for the 2 1/2 quart which is a 2nd generation piece when Corning began encapsulating the aluminum within the Pyroceram instead of simply cladding the bottom. This one piece is significantly easier to clean... That's all I gotta say about that.
Top Shelf: N-1 1/2-B (1 1/2 quart Sauce pan) on N-2 1/2-B (2 1/2 quart Sauce pan)
Middle Shelf: N-1-B (1 quart Sauce pan) on N-8 1/2-B (8 1/2 inch Skillet) on N-10-B (10 inch Skillet)
Bottom Shelf: N-5-B (5 quart Dutch Oven)
I can only guess as to why Corning decided to add Aluminum to their Corning Ware pieces. Granted, the only safe way to cook in aluminum is to have a layer of pyroceram between it and your food.
Where is your Corning Ware??