I also have had the Yorktowne pattern of Pfaltzgraff for many, many years. Probably about 30 - 35 years. I love it and I like the weighty feel of it. I have thought about replacing it with something new, but I like my blue and grey dishes.
I also have Corelle in the 5th wheel camper. It works OK for the camper because it is light weight and doesn't take up much room. But I am not fond of the feel and the style of it.