We can't give them to collectors because that would create a black-market demand and people would go out with metal detectors, digging up stuff on their own - which could cause damage to valuable archaeological finds. So the non-unique items are recycled since local counties/councils do not have funds to preserve them. If I understood it correctly.
It does boggle the mind. If you don't have the funds to preserve them properly in a museum, just put them in a box and store the box in a basement for later use. There are plenty of museum "storage" like that in Finland, where old stuff is just stored somewhere, sometimes not even protected from elements, in the hopes that it doesn't get completely destroyed until funding for proper preservation can be found.
It does boggle the mind. If you don't have the funds to preserve them properly in a museum, just put them in a box and store the box in a basement for later use. There are plenty of museum "storage" like that in Finland, where old stuff is just stored somewhere, sometimes not even protected from elements, in the hopes that it doesn't get completely destroyed until funding for proper preservation can be found.