Eek. No. (But apparently there are dispensing machines in Japan that sell used knickers. Strange planet we live on.) But no, my point - which I am sure a collector such as yourself would agree with - is that collections grow piece by piece and reflect the personality of the person assembling the collection. No two collections are the same.
Buying a tonne of XYZs from someone for a lot of money may make sense to some people, but not to me (especially in this case as I am 1. Skint and 2. am totally indifferent to Leatherman...)