Seems related to the explore/exploit problem, where the standard answer is related to the answer to the Secretary Problem[0], with the important caveat that it depends on whether "passing" on an opportunity legitimately makes it unavailable in future.
But another good answer is to open the door and trust the audience. The people who show up to the garage practice are perhaps not people who show up to buy tickets.
Adopting a scarcity mindset, generally, is a bad idea.
I'd never heard of the secretary problem, though like all of us I've been in that situation hundreds of times. Fascinating read! Thank you.
This is one of those (increasingly rare) internet conversations that might lead to legitimately better outcomes in my life.