Adrian said:
If what you say is true, I stand corrected.
However I wonder if it is true what you say.
I would say that there is a contract and that
parties are bound by the terms of the agreement.
Regardless of the question of the legal validity of shrinkwrap
agreements, my EULA seems to permit resale even if the software were
opened and used (with the exception of if the software in question is an
NFR (Not for Resale) copy):
17. SOFTWARE TRANSFER. The initial user of the Software may make a
one-time permanent transfer of this EULA and Software to another end
user, provided the initial user retains no copies of the Software. This
transfer must include all of the Software (including all component
parts, the media and printed materials, any upgrades (including any
Qualifying Software as defined in Section 13.3), this EULA, and, if
applicable, the Certificate of Authenticity). The transfer may not be
an indirect transfer, such as a consignment. Prior to the transfer, the
end user receiving the Software must agree to all the EULA terms.