Worthwhile is always a debate. It is like going to a showroom to listen to gear. Every room is trying to put its best foot forward and it may or may not work the same way in your space.
That said, it is hard to find a place where you can listen to more gear. Most rooms will not have stuff you can take away that day. Some floor models will be available at the end of show and will depend on the room. For example, the speakers I am showing are not in the color I want long terms so will be happy to move the pair I have simply so I can order one is the color I want.
It is a fun event. Certainly can be overwhelming but there are more than 175 listening rooms based on what I saw. Some manufacturers are cautious due to COVID. Some are relying on others to show their gear. Even if Wilson is not there, I am certain someone will be exhibiting Wilson speakers. Less common brands like Kharma will be harder to find.