Thank you everyone. This has been great info....
Also got an email from a guy named Brian at Mariner Sails Wind & Water Sports who wrote:

We don't currently have any leads on used Trifoilers. But we are actively looking. The demand for these boats since Hobie discontinued it has been amazing. Unfortunately, probably fewer than 200 were made, so we're having trouble. The owner (Aris) is maintaining a list of interested parties. If/when we get our hands on another one, we'll get the word out to everyone who's called/e-mailed us.

Thanks for your inquiry.
Brian

Then he followed with:
Aris (the owner of Mariner Sails) was one of the first Trifoiler owners. He spent a bunch of time working with Hobie and the Kettermans to iron out the early design issues. In the few years I've worked here, we've been
involved in about 8-10 Trifoilers. Because we saw so many of these boats, we joked for awhile that we were the only authorized Trifoiler repair and storage facility in the country.

That was very informative too so thank you Brian! Hopefully, I find one of these or a Rave to try sometime/someplace.

Thanks again everyone!
Greg