We don't do "wait time" well. So instead, we paid top dollar for a lightly used trailer. Not missing a camping season made it worth it to us. The memories and trips made during that "wait" time were priceless.
Patience is a virtue that I do not have.
Now some trailers pretty much never come up used. So if you have your heart set on one of those, wait time isn't optional. If I ordered such a trailer and didn't have a current trailer, I'd probably buy a used more common model, counting on selling it for close to what I paid for it when my dream trailer was ready. Expensive scenario for sure.