Personally, I subscribe to a waitlist of tools that can increase the efficiency of my work. And also tools to increase personal productivity (Notion like tools). I won't say there are VERY many of them, but if I come across a site with a good description, why not get notified when the product is ready.
You might consider that you have an early adopter mindset, which is a small percentage of all people. I'd not worry about your initial wait-list conversation rates and reasons, and just keep moving forward.
For example, that was the case with Pitch.