Our library system only had 4 copies of Spare and only one person checked it out. They had the same number of copies of Meet Me At The Lake and only 3 people have checked it out.
Spare copies were put out for the Library weekly book sale last summer. No one has bought any of the copies. I was at the Goodwill last week and they had 11 copies of Spare, since last March or April and haven't sold. It may have been the biggest and fastest selling book, but it's the most discarded book ever since records have been kept. It's been found left everywhere outside, inside or thrown in trash bins/Dumpsters.
I still don't quite believe it's sales number, those numbers came from Penguin.
236