You must admit that owning a 4000 is not the same as owning a 2000 or 3000
built in the sixties.
It is like my Grandmother from England making cakes and and meals in the US when she would come and visit. The ingredients may look the same but the aren't. So the stuff just isn't as good as it is when she made it back home when you first tasted it and fell in love with it.
Gran is dead now so the main part of the knowledge and ingredients is gone.
Some how treacle tarts from somewhere else beside Gran in Jolly Ol' just ain't the same.