As a disclaimer this is really not a major issue and very "first world"!
We needed new dinner plates as ours were knackered so as is usual for me I went to the local charity shop. There was one set that looked slightly antique which I loved as we have an old house - we got 7 dinner plates and 4 side plates for £5.
I got home and had a look at them properly and did a bit of on-line research and turns out they are art deco and probably worth a bit of money. I would still like to use them as I love them. The DC think I should sell them but then I would feel obliged to give the money back to the charity. DH thinks we should continue to use them but not for every day and that we definitely should not be dishwashering them (which I think is probably right).
WWYD?