The issue they have is that the number of wills they have to keep is large and increasing, and will increase forever or at least until they change the rule that

The issue they have is that the number of wills they have to keep is large and increasing, and will increase forever or at least until they change the rule that they must be kept in some form forever. On a related topic, and perhaps more importantly/scary, the Land Registry has already gone digital so that deeds to properties are only kept in digital form...