Hardware is probably cheaper on eBay than the maintenance fees anyway.
You should be wary of purchasing second user Cisco equipment and
their software license. Hardware is transferable but the Cisco
software is not.
Regards,
Neil.
If you are buying for replacement equipment and not build-out equipment, you *already* have Cisco software licenses for all the units in production, and could swap new (used) hardware in to replace damaged hardware without needing a new license. In that situation, buying used spares on eBay certainly can be cheaper than paying maintenance fees.
jc