Hello Scott,
In case of resale, make sure:
1. To transfer your license(s) on an USB-eLicenser, being resold to the next user
2. To delete the synth(s) registration(s) under your account: hhtp://www.arturia.com/login
3. To include all original elements in the pack: CD, manual, registration card
There isn't a fee involved.
Regards,
Rebecca