There is a dealer in Tuscaloosa, Alabama (ZeuS Fan). You can get ZeuS Fan's contact info (or any dealer) at:
http://www.zacharymusic.com/Zachary_Music/Dealers.htm
There is a cost for the trial. You pay for the horn with a credit card (or money order). The dealer will hold the money during the trail period. You also are responsible for shipping. If you like the horn, you keep it! If you wish to return it, simply ship it back and your money is refunded less the original shipping charge.
All the dealers are glad to demo a horn for you. Simply contact the one closest to you. I know I have driven several hundred miles to demo a horn -- most of the dealers have.
ZeuS is sold player to player. No big chain stores carry them. Players who want to share them with other players. It is a great way to sell trumpets. I have had more fun hanging out with other players and playing the horns. Contact Zach (ZeuS Fan) and ask him if he can set up a demo.
M&C