Everyone collects something and like the things we collect, the reasons for doing so vary. Some do it as a hobby, others see it as an investment, but how and why do we collect? — Petra Engels of Germany has a collection of 19,571 unique erasers from 112 countries. Barbara Hartsfield is a collector of 3,000 miniature chairs. Then there is Ralf Shröder who owns a collection of 14,502 sugar packets with one dating back to the 1950s.