i would like to add a little something here.
Metal ages a lot better than plastic.
over the years i have got my mits on a lot of second hand minis and recently i began cutting in to some old plastic marines to do some conversions , the plastic became very brittle with age and it shattered , something i never had problems with vintage/second hand metal , soke it in your paint remover of choice and voila , ready for a second chance at life on the war gaming table.
I wonder how well fine cast will fair in a couple of years on the second hand market ?