Inexpensive recumbent trike

The subject line might be somewhat inaccurate. My son, age 12, has seen
several recumbent trikes when we happened to ride with other recumbent
riders. Unfortunately, my search, primarily using the Internet, has not
produced one that is within my budget. Is the EZ-3 just about the only trike
option at what I consider entry level price? I've checked various sites
for used trikes and they would still strain the wallet.

Thanks for comments and suggestions.