Focus on Artefact Hunting: What has been "Rescued" and Where is it?

I'd like to ask the PAS where the finds are from fifteen years ago, those brought in buy the first 100 metal detectorists to record with the PAS. Are all these people still alive and do the still have their finds collections? If not, where are these objects? If we ask the same question after another fifteen years, will we have a better answer? What is the point of people "rescuing history" if we cannot subsequently locate the objects they curated? My guess is that we already have tens of thousands of objects floating around somewhere loose (the ones that have not gone into landfill or been melted down for scrap) which though they've been through the PAS process we have no real idea where individual artefacts came from and where they ended up.