WDPF book gains value after being used

Noticed today on Amazon that my book becomes more expensive after being used:

- Dmitry Vostokov @ DumpAnalysis.org -

One Response to “WDPF book gains value after being used”

  1. Crash Dump Analysis » Blog Archive » WDPF books gain even more value after being used Says:

    […] noticed previously that WDPF book gains value after being used but didn’t anticipate the scale of price value leak and spike. Today I noticed that used […]

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