I got in trouble the other day placing an order because I sorted my Wanted List
by "Have", going Up. This showed me the items I had the least of first,
as it should.
Where I cam undone was there were several items that my "Have" was large
but my "Want" was even larger. These got buried way down towards the
bottom of the list, and I didn't notice they were there.
Adding (with a very simple bit of math) a "Need" value, and being able
to sort a Wanted List by it would allow users to prioritise those items they
need the most of.
Australia, New South Wales
