10 3-way dimmers $500 (depending on type)
A single componant of a Graffic Eye will run you $500! And you'll need many! a GP panel and all the interfaces could run you thousands! And not interact with the Crestron at all....
Expanding the Crestron will also be in the thousands possibly.... If possible?
I would find out if it could be expanded...
http://support.crestron.com/cgi-bin/crestron.cfg/php/enduser/entry.php Get ready to charge a bundle for it, and include some time to reseach it!! Or, 10 3- ways...........