I don't expect my electrical items to last a lifetime, I'd say 5-10yrs is all I expect from them.
Tupperware, LOL, it's only lifetime cause they replace it. I have heaps of split and broken stuff..
The only things that I expect to last:
My crystal champagne glasses and vases ( if the kids don't break them in the mean time )
A cupboard/dresser that I restored from my stepdad's mum's collection
Books I have kept from my childhood
Wool trenchcoat

Hmmm, will probably think of some more.